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DSSS.rar
- 一个四用户的扩频通信系统,扩频增益为N=16,采用Walsh码进行直接序列扩频,BPSK调制,无线信道为AWGN(加性高斯白噪声信道)信道(AWGN信道:不考虑通信信道信号时,由宽频范围描述的统计随机无线噪声。)。在接收端进行解扩,解调,判决,通过仿真得到其中一个用户的误比特率与信噪比的仿真结果。,A four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct
DQPSK
- 此代码为π_4DQPSK解调源程序,用MATLAB实现,使用差分方式。-This demodulation π_4DQPSK source code using MATLAB to achieve, the use of differential mode.
QPSK
- 提出了一个采用(2,1,7)卷积码+QPSK的中频调制解调方案,并在Xilinx公司的100万 门FPGA芯片上实现了该系统。该系统在信噪比SNR为6dB左右时可实现速率超过1Mbit/s、误码率 小于10-5的数据传输。 -Proposed a use of (2,1,7) convolutional code+ QPSK modulation and demodulation of the IF program, and in Xilinx' s FPGA chip one
ModDemodOQPSK
- This file is the matlab source code for offset QPSK (OQPSK) modulation and demodulation in wireless and mobile communications
channel_simulation
- 代码包含的主要内容是AWGN信道上BPSK,QPSK,16QAM的调制解调,以及误码率计算过程,其中还有OFDM调制在信道上传输的仿真内容-Code contains the main contents of AWGN channel BPSK, QPSK, 16QAM modulation and demodulation, and bit error rate calculation process, in which there are OFDM modulation in the cha
QPSK
- pi/4 QPSK modulation and demodulation matlab code and explaination
QPSK-Modulation-and-Demodulation
- 此例程为配套书籍的第六章例题7-19的相对应代码,功能为QPSK调制与解调,编程环境为matlab。-This routine supporting books Chapter Example 7-19 corresponding to the code for the function QPSK modulation and demodulation, programming environment Matlab.
QPSK
- 用于QPSK调制与解调的程序,直接就可以使用。(matlab code for the modulation and demodulation of QPSK)