雖然這篇OQPSK鄉民發文沒有被收入到精華區：在OQPSK這個話題中，我們另外找到其它相關的精選爆讚文章
oqpsk 在 Alice Tang Instagram 的精選貼文
2020-05-03 08:44:39
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[爆卦]OQPSK是什麼？優點缺點精華區懶人包
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#1OQPSK - 中文百科知識
OQPSK 也稱為偏移四相相移鍵控（offset-QPSK），是QPSK的改進型。它與QPSK有同樣的相位關係，也是把輸入碼流分成兩路，然後進行正交調製。不同點在於它將同相和正交兩支 ...
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#2最小頻移鍵控- 維基百科 - Wikipedia
在數位調製中，最小頻移鍵控（Minimum-Shift Keying，縮寫：MSK）是一種連續相位調製的頻移鍵控方式，在1950年代末和1960年代產生。 ... 與偏移四相相移鍵控（OQPSK）類似， ...
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#3What is OQPSK Modulation? - everything RF
Offset Quadrature Phase Shift Keying (OQPSK) is a variant of the QPSK modulation scheme where the phase or timing of either the in-phase or ...
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#4Digital Phase Modulation and p/4-QPSK
全稱為offset QPSK，也就是相對移相方式OQPSK。它具有一系列獨特的優點，已經廣泛應用於無線通訊中，成為現代通信中一種十分重要的調製解調方式。在 ...
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#5oqpsk_百度百科
OQPSK 也稱為偏移四相相移鍵控（offset-QPSK），是QPSK的改進型。它與QPSK有同樣的相位關係，也是把輸入碼流分成兩路，然後進行正交調製。
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#6DS/SS-OQPSK通訊系統模擬__臺灣博碩士論文知識加值系統
本論文針對直接序列展頻(Direct Sequence Spread Spectrum；DS/SS)偏移正交相移鍵控(Offset Quadrature Phase Shift Keying；OQPSK)通訊系統進行建置與信號模擬分析。
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#7OQPSK - 快懂百科 - 头条百科
OQPSK 也称为偏移四相相移键控（offset-QPSK），是QPSK的改进型。它与QPSK有同样的相位关系，也是把输入码流分成两路，然后进行正交调制。
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#8一种oqpsk信号解调的相位偏差估计与补偿方法 - Google Patents
为了实现OQPSK调制信号准确载波相位同步，本发明方法包括：依据相位偏差估计方法，对频偏估计补偿后的信号进行四次方去调制，实现相位偏差初步估计；取相位偏差初步估计值 ...
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#9数字频带传输---OQPSK - 知乎专栏
OQPSK 调制解调1、为什么要进行OQPSK？ 答：QPSK信号的幅度是恒定的，然而当QPSK进行波形形成时，由于实际信道是带限的，要经过带通滤波器， ...
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#10Difference between QPSK vs OQPSK vs pi/4QPSK
OQPSK and pi/4 QPSK are variants of the basic QPSK modulation schemes. They are widely used based on their unique individual phase transition functionalities ...
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#11Offset and Shifted Quadrature Phase-Shift Keying (OQPSK ...
Digital Communication - V18 - Offset and Shifted Quadrature Phase-Shift Keying ( OQPSK ). 5K views 3 years ago. WISLAB ...
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#12A high-speed OQPSK module with direct modulation mode in RF
The work presents an efficient satellite OQPSK (offset QPSK) module of direct modulation in RF. The module's modulation rate can reach 150 Mbps in L band, ...
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#13oqpsk_搜狗百科
OQPSK 也称为偏移四相相移键控（offset-QPSK），是QPSK的改进型。它与QPSK有同样的相位关系，也是把输入码流分成两路，然后进行正交调制。不同点在于它将同相和正交两支 ...
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#14Shaped OQPSK (Digital Demod)
an OQPSKOffset Quadrature Phase Shift Keying: A type of QPSK modulation that offsets the bit streams on the I and Q channels by a half bit. This reduces ...
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#15偏移四相移相键控（OQPSK） - 空军工程大学
2、掌握OQPSK的调制、解调原理，了解四种载频信号的产生方法；. 3、了解OQPSK相对于DQPSK的优缺点。 二、实验仪器. 1、序列码产生器 2、串并变换器.
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#16Modulation using OQPSK method - Simulink - MathWorks
The OQPSK Modulator Baseband block modulates the input signal using the offset quadrature phase shift keying (OQPSK) method and applies pulse shape ...
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#17Performance of Coded Offset Quadrature Phase-Shift Keying ...
Based on the representations of OQPSK and MIL-STD SOQPSK as trellis-coded modulations, we investigate the potential coding gains achievable from the ...
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#181 Comparative phase-shifts in QPSK & OQPSK A simulation ...
Download scientific diagram | 1 Comparative phase-shifts in QPSK & OQPSK A simulation model of the WiMax using OQPSK is prepared in MATLAB.
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#19QPSK, OQPSK, CPM Probability Of Error for AWGN and Flat ...
OQPSK modulation is such that phase transitions about the origin are avoided. The scheme is used in IS-95 handsets. In OQPSK the pulse streams mI(t) = m0,m2,m4, ...
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#20OQPSK | European Cooperation for Space Standardization
The European Cooperation for Space Standardization is an initiative established to develop a coherent, single set of user-friendly standards for use in all ...
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#21QPSK 对OQPSK对pi/4QPSK 的区别 - CSDN
QPSK 对OQPSK对pi/4QPSK都是无线数字通信系统中常用的调制方式。Oqpsk 和pi/4 qpsk 是基本qpsk 调制方案的变体。由于它们各自独特的相变功能而被广泛 ...
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#23Buy QPSK / OQPSK / DPSK 91029-20 online | Festo CN
The QPSK/OQPSK/DPSK board provides students with the theory and measurement skills required to implement and test different types of PSK modulation and ...
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#24OFDM-IJF-OQPSK调制体制 - Semantic Scholar
针对正交频分复用（OFDM）信号带外衰减小的缺点,用功率谱密度分布更为集中的无码间干扰和抖动-交错正交相移键控（IJF-OQPSK）调制代替传统的多进制数字相位 ...
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#25Offset Quadrature Phase Shift Keying (OQPSK)
Using blocks from the SIMULINK Block Library, the Signal Processing Blockset, and the Communications Blockset, design an OQPSK modulator, patterned after ...
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#26save - Sci-Hub
Simulink model for Zigbee transceiver using OQPSK modulation under fading channels. 2015 International Conference on Communications and Signal Processing ...
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#27Digital modulation - OQPSK - Optiwave
The OQPSK modulation is a PSK modulation, using 2 bits per symbol and a delay of one bit in the in quadrature signal (refer to OptiSystem component library, ...
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#28A cascaded FBG scheme based OQPSK/DPSK modulation for ...
In the beginning, the OQPSK modulator splits the binary input into two channels (i.e. I-channel and Q-channel). Odd bits are assigned to the I- ...
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#29A programmable carrier phase independent symbol timing ...
The OQPSK modulation is an improvement, in which the instantaneous phase change is limited to 90° instead of 180°. This provides a reduction of the amplitude ...
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#30用於植入式生醫用途具高能量效率之400MHz射頻收發器設計
然而在第六章則介紹一個OQPSK發射器，它可以使用三角積分相位旋轉器中的”相位選擇器”，直接選擇四相位訊號中的其中一相位輸出來達成OQPSK調變。此OQPSK發射器 ...
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#31Modulation recognition of co-channel OQPSK and MSK based ...
Aiming at the OQPSK/MSK signals in co-channel, a new classification feature is constructed using the impact of the different symbol weighting pulse in the ...
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#32A Modified OQPSK Detection for SOQPSK-TG in Aeronautical ...
We develop a simple detection of SOQPSK-TG which is based on a modified OQPSK detection. The simple detection has the advantages of low complexity and good ...
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#33Comparative Analysis on OQPSK and QDPSK of Continuous ...
Based on the urgent needs for high transmission speed and high reliability of wireless MWD, the OQPSK modulation of the drilling fluid continuous wave ...
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#34Low-cost functional test of a 2.4GHz OQPSK transmitter using ...
2.4GHz OQPSK-modulated signal with half sine pulse shaping on a digital ATE. The test is based on 1-bit under-sampled acquisition.
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#35SILICON LABS MGM13S12F512GA-V2
購買MGM13S12F512GA-V2 - Silicon Labs - RF Transceiver Module, GFSK, OQPSK, 2Mbps, 2.4835GHz, -90.2dBm, 1.8V to 3.8V, I2C(S), SPI, UART。e絡盟台灣提供優惠 ...
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#36Bit Error Rate Performance of OFDM/OQPSK and CPM with ...
In this paper, Bit Error Rate performance of Orthogonal Frequency Division Multiplexing/Offset Quadrature. Phase Shift Keying (OFDM/OQPSK) and Continuous ...
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#37An Advanced GNU Radio Receiver of IEEE 802.15.4 OQPSK ...
This paper focuses on the physical layer that relies on Offset. Quadrature Phase Shift Keying (OQPSK). At the transmitter, each group of four bits in the data ...
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#38QPSK,OQPSK, and MSK Spectral Regrowth and PA Efficiency
QPSK, OQPSK, and MSK were evaluated for spectral regrowth and power amplifier efficiency. • Each waveform was synthesized at baseband using a dual.
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#39Timing Error Detector for OQPSK Signal - KOASAS
D'amico proposed a symbol timing estimator that is phase insensitive with. OQPSK modulation [5]. It has an advantage of operating in feedforward structure but ...
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#40FPGA Implementation of Optimized QPSK and OQPSK Using ...
In this paper, QPSK and OQPSK modulation techniques have been implemented on FPGA using VHSIC (Very High Speed Integrated Circuit) Hardware Description ...
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#41OQPSK信号解调的设计与实现-手机知网
OQPSK 信号解调的设计与实现,矢量信号测试分析;;定时同步;;载波同步;;OQPSK,本学位论文工作内容源自国家重大科学仪器设备开发专项“高性能微波频谱分析仪研制与应用开发” ...
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#42OQPSK_通信百科
OQPSK,什么是OQPSK,1. Offset QuadraPhase Shift Keying -- 偏移四相相移键控2. Offset Quadrature Phase Shift Keying -- 偏移正交相移键控保证I(t)Q(t)只.
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#43Research on Synchronization Technology of OQPSK Signal ...
It overcomes the 180° phase jump of OQPSK which has more advantages, such as fast power descent, low sidelobes and high spectrum efficiency, ect.
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#44OQPSK + FEC Radio Configuration - Silicon Labs Community
I am trying to set up a transmission line between 2 EFR32FG1P133F256GM48. For the radio, I want to use a configuration of OQPSK and FEC on a 434MHz ...
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#45A reduced complexity equalizer for OQPSK - ACM Digital Library
This letter presents a reduced complexity equalizer for offset quadrature phase-shift keying (OQPSK), Gaussian minimum shift keying (GMSK), ...
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#46ENCAP-4: an OQPSK-type modulation technique for digital radio
A class of OQPSK-type signals (offset quadrature phase shift keyed) is defined which generalises several well known modulation formats.
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#47OQPSK vs QPSK envelope query
Offset QPSK (OQPSK) doesn't have phase transitions of π. By staggering the I and Q signals by half a ...
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#48基于平方谱估计的OQPSK载波同步算法 - 电子与信息学报
An Algorithm of OQPSK Carrier Synchronization Based on Quadratic Spectrum[J]. Journal of Electronics & Information Technology, 2011, 33(4): 997-1001. doi: ...
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#4910 Mbps 0.3 nJ/bit OQPSK transceiver IC for 400–450 MHz ...
A 10 Mbps OQPSK transceiver working in the 400–450 MHz frequency range is designed for medical telemetry applications requiring wireless ...
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#50OQPSK信号调制的基本原理和电路-技术资讯 - 资料
内容摘要：信号的调制识别技术在目前数字通信中应用极为广泛，针对QPSK的倒现象，文中介绍了一种OQPSK调制方法，其具有较高的传输可靠性和频带利用率，并对基带信号的 ...
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#51Performance Improvement of DS-CDMA Wireless ... - CiteSeerX
System is simulated with OQPSK modulation scheme which when compared with conventional. Binary Phase Shift Keying (BPSK) gives improved performance in terms of ...
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#52IJF-OQPSK modulation schemes with MLSE receivers for ...
1992 (English)Conference paper, Published paper (Refereed). Abstract [en]. A receiver structure for constant enveloped IJF-OQPSK modulation ...
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#53QPSK - 中文百科全書
偏移四相相移鍵控信號簡稱“O-QPSK”。全稱為offset QPSK，也就是相對移相方式OQPSK。 相關：在HFC網路架構中，從用戶線纜數據機 ...
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#54giriteja94495/oqpsk: Find the code,report,and also ... - GitHub
Find the code,report,and also the results of oqpsk modulation - GitHub - giriteja94495/oqpsk: Find the code,report,and also the results of oqpsk modulation.
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#55VLSI implemented 60 Mb/s QPSK/OQPSK burst digital ...
A fully digital high speed Quadrature Phase Shift Keying (QPSK)/Offset QPSK (OQPSK) burst demodulator for radio applications is described.
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#56Zigbee Transceiver Multipath Fading Based On OQPSK ...
This paper demonstrates the design and the simulation of a 2.4 GHz ZigBee transceiver system,using Offset Quadrature Phase Shift Keying (OQPSK) modulation ...
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#57Novel Equalization Techniques for OQPSK
In this thesis, three different equalizers for the offset quadrature phase-shift keying (OQPSK) signaling are presented. At first, the use of a real-only ...
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#58Resolving Phase Ambiguities In OQPSK
Improved design for modulator and demodulator in offset-quaternary-phase-key-shifting (OQPSK) communication system enables receiver to ...
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#59OQPSK - Definition by AcronymFinder
2 definitions of OQPSK. Meaning of OQPSK. What does OQPSK stand for? OQPSK abbreviation. Define OQPSK at AcronymFinder.com.
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#60基于OQPSK信号的调制技术的解决方案 - 电子工程世界
OQPSK 是针对QPSK的一种改进形式，OQPSK信号则把Q路信号和I路错开了半个码元周期(相对I路或Q路的码元周期Ts而言)，因而信号的相位变化在任何一个的整数倍处 ...
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#61Oqpsk - SlideShare
Digital Modulation schemes OQPSK Offset Quadrature Phase-shift keying Shahid Beheshti Univ. of Tehran.
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#62Circuit Board 91029: QPSK/OQPSK/DPSK - Festo Didactic
Circuit Board 91029: QPSK/OQPSK/DPSK. Phase-shift keying (PSK) is a method of digital communication in which the phase of a transmitted signal is varied to ...
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#63OQPSK调制快速位定时和载波相位捕获算法 - 重庆大学期刊社
在高速数字突发通信中,需要快速、高效地对接收信号的位定时和载波初始相位信息进行估计.针对OQPSK调制的特点,提出一种能够同时进行位定时和载波初始 ...
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#64Efficient Maximum-Likelihood Based Clock and Phase ...
Phase Estimators for OQPSK Signals. Antonio A. D'Amico. Abstract—In this paper we propose an algorithm for joint carrier phase and timing estimation with ...
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#65DSSS System with OQPSK-Spread FSK - IEICE
DSSS System with OQPSK-Spread FSK: Study on Characteristics of Low Envelope Fluctuation and Bit Error Rate Due to Narrow-Band Interference.
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#66Digital Transmission Systems - 第 397 頁 - Google 圖書結果
By comparing ( 6.82 ) with ( 6.79 ) , we see that MSK is identical to this special form of OQPSK , with bn = -Pnqn ( 6.83 ) Thus MSK can be viewed as either ...
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#67An enhanced widely linear CDMA receiver with ... - TSpace
Citation: K. Plataniotis, A. Mirbagheri, S. Pasupathy, 'An enhanced widely linear CDMA receiver with OQPSK modulation', IEEE Transactions on Communications, ...
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#68查找： 关键字=OQPSK - 中国知网
[1] 杨祎,刘雯,阴亚芳,贺锋涛,张建磊. 基于改进Gardner算法的水下无线光OQPSK系统性能分析 [J]. 量子电子学报. 2022 (03); [2] 刘皎,张娜. OQPSK恒包络调制CO-OFDM系统 ...
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#69TSI-OQPSK for multiple carrier and nonlinearly ... - uO Research
Title: TSI-OQPSK for multiple carrier and nonlinearly amplified systems. Authors: Pham Van, Hiep. Date: 1983. URL: http://hdl.handle.net/10393/4597
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#70Performance Comparison between DPSK and OQPSK ...
keying (DPSK) and Offset Quadrature phase shift keying (OQPSK) schemes are ... Keywords:- digital modulation, DPSK, Matlab Simulink, OQPSK.
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#71Buy Demodulador Oqpsk by Sombra Da Silva Adeildo at Low ...
Demodulador Oqpsk by Sombra Da Silva Adeildo from Flipkart.com. Only Genuine Products. 30 Day Replacement Guarantee. Free Shipping. Cash On Delivery!
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#72All digital OQPSK demodulation for an on-board processing ...
This thesis is focused on the demodulator part of an MCD using OQPSK modulation which haye received attention recently due to its spectral advantages in ...
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#73Which pulse-shaping filter used in AX5031 for PSK/OQPSK?
Of course, I would expect raised cosine or root raised cosine filter, but what really is? And which roll-off?
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#74基于改进Gardner 算法的水下无线光OQPSK 系统性能分析
摘要： 针对水下无线光通信(UWOC) 中海水信道的衰减特性和系统自噪声对调制性能的影响, 提出了一种改进的Gardner 定时同步算法, 建立了基于偏移正交相移键控(OQPSK) ...
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#75Compensation of quadrature imbalance in an optical coherent ...
Offset quadrature phase shift keying (OQPSK) is one of the modulation formats that has attracted attention lately because of its superior transmission ...
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#76量測ZigBee應用多元化採用VSA解析訊號調變品質 - 新通訊
802.15.4使用OQPSK及Half-sine Pulse Shaping濾波器作為其調變技術，這個標準的運用是在低速率(Low Data Rate)及低功率下，對於其調變方式則是對不同 ...
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#77OQPSK demodulation of waveform data(DBL) - NI Community
Hi, I would like to demodulate a O-QPSK modulated signal using Labview. The equipment that I dispose of is a DS06104A Agilent scope.
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#78Enabling NL-Amplification of Spectral Efficient Signals
Ring-type Magnitude Modulation for OQPSK: Enabling NL-Amplification of Spectral Efficient Signals, Proc Vehicular Technology Conference: VTC-Spring ...
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#79m基于FPGA的全数字OQPSK调制解调器，包括成形滤波器
算法描述. OQPSK也称为偏移四相相移键控（offset-QPSK），是QPSK的改进型。它与QPSK有同样的相位关系，也是把输入码流分成两路，然后进行正交调制。
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#80Effects of cochannel interference on MSK and OQPSK signals ...
In this thesis, we analyze the effect of cochannel interference on the error rate performance of MSK and OQPSK signals transmitted through a satellite channel.
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#81基于改进Gardner算法的水下无线光OQPSK 系统性能分析
Performance analysis of underwater wireless optical communication system based on improved Gardner algorithm of OQPSK modulation.
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#82Multiple-Bit Differential Detection of OQPSK - Tech Briefs
This could be the best-known differential-detection method for OQPSK. ... with offset quadrature phase-shift keying (offset QPSK or OQPSK).
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#83OQPSK Synchronization Parameter Estimation Based ... - MDPI
The OQPSK signal is an improved version of the. Quadrature Phase Shift Keying (QPSK) signal, which can be obtained by staggering the code ...
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#84File:Oqpsk phase plot.svg - Wikimedia Commons
Then it shows how the plot changes using OQPSK: the behaviour is smoother since all the 180-degrees jumps are removed.
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#85OQPSK - SatNOGS Wiki
Introduction. Offset quadrature phase-shift keying (OQPSK) is a variant of phase-shift keying modulation using four different values of the ...
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#86Comparison of OQPSK and CPM for Communications at 60 ...
On one hand, we study the offset-QPSK (OQPSK) modulation combined with a channel frequency-domain equalization (FDE). On the other hand, ...
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#87Comparison of Performance Metrics for QPSK and OQPSK ...
Quadrature Phase Shift Keying (QPSK) and Offset Quadrature Phase Shift Keying (OQPSK) are two well accepted modulation techniques used in Code ...
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#88OQPSK Synchronization Parameter Estimation Based on ...
The OQPSK signal is an improved version of the Quadrature Phase Shift Keying (QPSK) signal, which can be obtained by staggering the code streams ...
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#89OQPSK demodulator design for 10.5kbps Aero signals
The reason for OQPSK is simply because the 10.5kbps signals used for Inmarsat Aero signals use OQPSK rather than the MSK (minimum shift ...
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#90Wiener's Loop Filter for PLL-Based Carrier Recovery of ...
This letter considers carrier recovery for offset quadrature phase shift keying (OQPSK) and minimum shift keying-type (MSK-type) modulations based on ...
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#91COM-1805 digital PSK modem (BPSK,QPSK,OQPSK)
ComBlock online store COM-1805 digital PSK modem (BPSK,QPSK,OQPSK) [COM-1805] - Continuous-mode modem for BPSK/QPSK/OQPSK modulation.
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#92offset quadrature phase shift keying (Modulation) (OQPSK)
Offset Quadrature PhaseShift Keying (OQPSK) is a special form of quadrature phase shift keying(QPSK) in which there is an offset of one bit ...
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#93基于DSP Builder的OQPSK调制器设计及FPGA实现
摘要：提出了OQPSK调制器的全数字实现方案,基于DSP Builder 完成了方案的建模仿真并进行了硬件验证，实验表明，所设计的调制器工作稳定、可靠, ...
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#94High-Speed OQPSK and Efficient Power Transfer Through ...
High-Speed OQPSK and Efficient Power Transfer Through Inductive Link for Biomedical Implants. IEEE Trans Biomed Circuits Syst. 2010 Jun;4(3):192-200. doi: ...
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#95OQPSK调制器设计方案解析 - 电子发烧友
OQPSK 调制技术是继OPSK之后发展起来的一种恒包络数字调制技术，由于具有较高的频带利用率和在频带受限的系统中抗干扰性能强，被广泛地应用于移动通信 ...
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#96What is the advantage of offset QPSK over standard QPSK?
The main purpose of OQPSK is to limit the maximum phase change possible in QPSK. In QPSK, each pulse represents two bits. Since there are 4 states(symbols), ...
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#97The Electrical Engineering Handbook - 第 975 頁 - Google 圖書結果
This modulation scheme, offset quadrature phase shift keying (OQPSK), is obtained from the conventional quadrature phase shift keying by delaying the ...
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