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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
QPSK
- 实现QPSK的仿真，画出误码率和信噪比的曲线-QPSK simulation to achieve, draw the curve of error rate and SNR
qpsk
- Passing signal to AWGN channel after QPSK modulation and plotting BER at SNR
B_Q_Q16_AWGN
- B_Q_Q16_AWGN.rar是BPSK,QPSK,16QAM在高斯信道下的系统性能仿真，给出了信噪比SNR与误比特率BER 的关系。 16QAM是16进制的正交振幅调制在高斯信道和瑞利信道下的信噪比SNR与误比特率BER 的关系。都是matlab编写的-B_Q_Q16_AWGN.rar BPSK, QPSK, 16QAM in AWGN channel system performance simulation, given the relationship between the S
SpaceTimeTrellisCode
- The software is capable to simulate space time code [1] for QPSK modulation using different number of state. Examples of generator matrix up to 256 stetes are provided. Variable signal to noise ratio (SNR) might be applied to produce bit error rate (
ber
- Bit error probability curve for QPSK mimo 1*2, Bit error probability curve for QPSK mimo 1*4-Bit error probability curve for QPSK mimo 1*2, Bit error probability curve for QPSK mimo 1*4
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
RAKE_BER_CONVENC_QPSK
- *Demonstrate convolutional encoding and decoding *Simulate BER for QPSK and BPSK, plot and then **compare the result with the theoretical value. *compare SER of the Rake and ML. – Symbols are taken randomly from QPSK. – Run the simulation for
OFDM_SNR(QPSK)
- OFDM系统，调制方式QPSK，查看星座图，分析误码率-OFDM systems, modulation QPSK, view the constellations, the bit error rate analysis
qpsk
- Q-PSK matlab code ber snr noise sim
matlab
- 基于ofdm的信道系统源代码，包括调制、解调等。函数功能 ： 实现数据的QPSK调制—PLC信道传输—BPSK解调—得到误码率- is_noise 是否添加噪声：0 否，1 是 is_convenc 是否进行卷积编码： 0 否 , 1 是 ；——信道编码 interout 交织输出 interin 交织输入 chan_type PLC信道类型：0 无多径，1 四径模型，2 11径模型，3 AR模型，4 FIR模型；
OFDM simulation matlab
- This file simulates OFDM using various modulations schemes The user chooses whether to use BPSK or QPSK ar 16-QAM. Then the code proceeds by inserting Cyclic Prefix and Pilot Signals This is followed by FFT (Fast Fourier Transform) A channel is simul
C1
- This code is related to the course Digital Communications. It easily reproduces the error probability as a function of the SNR per bit for QPSK and 16-QAM systems using MATLAB
THE3
- a Matlab code that produces a plot of probability of bit error rate for QPSK versus SNR for three receive antennas, and three different combining methods: MRC, equal gain combining, and selection combining. The plot is generated by using Monte Carlo
BPSK-QPSK
- 分别编写BPSK与QPSK调制解调系统的Matlab仿真程序，要求：发送滤波器与接收滤波器均为根升余弦滚降滤波器；信道噪声为加性高斯白噪声 绘制BPSK与QPSK调制下的误码率与信噪比曲线图，并与理论曲线比较对比-They were written BPSK and QPSK modulation and demodulation system Matlab simulation program requirements: a transmission filter and a recept
BPSK.QAM.QPSK.DPSK
- 各种数字调制解调方法的MATLAB实现，输出为信噪比图像。包括BPSK,DPSK,QAM,QPSK(包括有无格雷编码的对比)-A variety of digital modulation and demodulation MATLAB implementation of the method, the output SNR images. Including BPSK, DPSK, QAM, QPSK (including comparative Have Gray coding)
QPSK
- ber vs snr plot of QPSK using matlab simulator
qpsk
- QPSK MODULATION SNR-BER
channel capacity and SNR
- QPSK,8PSK,16QAM等信号调制的信道容量与信噪比的关系matlab代码。(QPSK,8PSK,16QAM relationship between channel capacity and signal-to-nouse ratio.)
beranddistance
- 对OOK、BPSK、QPSK、16QAM、64QAM在水下信道传输的性能分析，作出信噪比-距离曲线。(The performance of OOK, BPSK, QPSK, 16QAM and 64QAM in underwater channel transmission is analyzed, and the SNR distance curve is made.)