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qpsksystem_SJSU
- This is a model of a QPSK modulation system for transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC fi lters with excess bandwidth α = 0.18 are employed. The receiver includes an NDA timing recovery
QPSK_TX_IQ_RX_REV1
- QPSK Transmitter and I/Q Correlator Receiver is based on the technique of queing the information in a bit stream and on the receving end using FFT and some additive filters, as the addition of noise is made to infuse the need of a filter. Necessarily
uwb_sim
- 这是一个定点的多带OFDM物理层发射机/接收机模型,共122个子载波，22个导频，采用QPSK调制,5/8前向纠错码(删余卷积码.)-This is a sentinel of the multi-band OFDM physical layer transmitter / receiver model, a total of 122 sub-carrier. 22 pilots, using QPSK modulation, 5 / 8 prior to the error-correctin
ZHAO_OFDM
- 这个程序除了接收机同步、信道编码没有加入外，基本上反映了一个OFDM系统的特性： 1. qpsk/16qam/64qam映射、解映射 2. OFDM调制解调（循环前缀，FFT等） 3. 非整数采样时刻多径时延的多径信道 4. Rayleigh或者Rician多径信道 5. 信道的连续时变（非block fading） 6. 线性插值信道估计 7. FFT变换域插值信道估计-In addition to this program receiver synchroniza
cdma_c
- 关于宽带CDMA系统的仿真程序，用C语言编写。内容保护各种信道模型，调制信号如QPSK的产生，各种接收如RAKE接收-Wideband CDMA system on the simulation program, using C language. Content Protection various channel models, such as the QPSK modulation signal generation, a variety of receivers such as RAKE
qpskzjm
- matlab实现矩形脉冲和根升余弦脉冲的QPSK调制功率谱密度及不同信噪比信道下的星座图，直接运行main函数即可-Plot the power density spectrum of the transmitted signal (e.g., with the matlab function psd) with different pulse shapes. How is it affected if a root raised cosine pulse is chosen instead o
On-the-Design-of-Frequency-Domain-Equalizers-for-
- This paper considers frequency-domain receiver design for OQPSK signals (Offset Quaternary Phase Shift Keying). It is shown that conventional QPSK receivers are not suitable to OQPSK schemes since they lead to significant interference between
QPSK_conv
- 通信系统仿真大作业，卷积码编码，QPSK调制，接收端维特比软判决。程序正确。-Communication system simulation a large operation, convolution coding, QPSK modulation, soft-decision Viterbi receiver. Program is correct.
Up_synchronization_Dick
- The timing_recovery_1.mdl uses Simulinks variable step solver to create a continous time QPSK signal with both carrier and symbol rate errors. This is a relativly straight forward approach, but is computationally expensive. The sescond mod
joint-detection-of-TD-SCDMA
- 为评估TD_SCDMA下行链路联合检测接收机的性能，使用MATLAB软件进行链路仿真，本程序主要是实现用户QPSK基带调制、扩频、加扰、形成时隙、形成子帧、以及进行脉冲形成滤波，通过加性高斯白噪声信道和瑞利衰落多径信道，信道估计、联合检测等几个主要过程，整个仿真都是在基带进行的。-Link simulation to assess the performance of the TD_SCDMA Downlink joint detection receiver using MATLAB soft
8psk
- （1） 分析QPSK调制、解调原理，并画出其系统框图； （2） 产生等概率且相互独立的二进制序列，作为待传输的信号，并画出其波形； （3） 进行8PSK调制，分别画出I、Q两支路信号经过乘法器后的波形以及8PSK调制波形； （4） 产生均值为0，方差为1的加性高斯随机噪声，画出其时域波形及频谱； （5） 将加性高斯随机噪声作为传输信道的干扰，画出接收端信号的时域图； （6） 进行8PSK解调，输出解码序列，画出解调后信号波形； （7） 计算系统信噪比、传输误码率。-(1)
tongxinyuanli
- 通信系统包括pcm，hdb3编码和译码，最佳接收机ask，qpsk，fsk调制方式-The communication system includes pcm, hdb3 encoding and decoding, the best receiver ask qpsk, FSK modulation mode
zf
- mimo，QPSK调制，ZF、MMSE接收，比较系统误比特率-mimo, QPSK modulation, ZF, the MMSE receiver, the system bit error rate
QPSKmodulation
- 实现QPSK调制，包含信息发送端，信息接收机和传输部分，含详细的注释！-QPSK modulation that contains information transmitting terminal, the information receiver and a transmission portion, containing detailed notes!QPSK modulation that contains information transmitting terminal, the i
USRP-Packet-Receiver
- labview实现USRP收发机接受信号的仿真实现，其中包括BPSK,QPSK,8PSK,16PSK,OQPSK等多种调制模式-labview achieve USRP transceivers achieve acceptable signal simulation, including BPSK, QPSK, 8PSK, 16PSK, OQPSK modulation modes and other
bon-cour-QPSK
- Phase shift keying (PSK) is a large class of digital modulation schemes. PSK is widely used in the communication industry. In this chapter we study each PSK modulation scheme in a single section where signal descr iption, power spectral density,
TELE - 753 Wireless Communications
- This course provides advanced knowledge of wideband wireless communication techniques. It include the areas of diversity: Time diversity, Space diversity, Frequency TELE9753 Advanced Wireless Communications 2 diversity; Wideband CDMA systems, Wide
freq_estimate
- 该工程实现对单载波系统QPSK的频偏估计算法。调相信号在接收机相干解调时需要同频同相的参考载波，而发射机和接收机之间往往存在频率偏差，为了消除这种误差，必须在软件层面实现。使用了QPSK四相调制的信号特点进行载波频偏估计，经验证，效果较好。(This project implements frequency offset estimation algorithm for single carrier system QPSK. The phase modulation signal needs t
100 Gbps DP-QPSK System with DSP (1)
- 相干光通信接收端补偿MATLAB代码以及Optisystem仿真系统文件(Compensation MATLAB code for receiver terminal of coherent optical communication)
112 GBaud QPSK Coherent Receiver
- This setup illustrates the principle of coherent detection and digital signal processing (DSP) for a coherent 112Gb/s QPSK signal. The system performance is limited by noise (added in front of the receiver), chromatic dispersion and PMD (taking place