MATLAB Code for QPSK Modulation and Demodulation 因为在学习5G物理层,一直很忙,没有时间。最近稍有...
The code snippet provided in the previous section demonstrates how QPSK modulation and demodulation can be implemented using MATLAB. The code generates a random QPSK modulated signal, displays the signal in a scatter plot, and then performs QPSK demodulation to recover the original digital data. The...
ldpc_code = mod(Trans_data*G,2); %DSSS pseudoNumber = round(rand(1,fp)'); [dsss,converted,PN2] = func_dsss(ldpc_code,pseudoNumber,fp); Trans_QPSK = QPSK_modulation(dsss); %通过高斯信道 Rec_QPSK = awgn(Trans_QPSK,SNR(i),'measured'); ReData = QPSK_demodulation(Rec_QPSK); %DSS...
ldpc_code = mod(Trans_data*G,2); %DSSSpseudoNumber =round(rand(1,fp)'); [dsss,converted,PN2] = func_dsss(ldpc_code,pseudoNumber,fp); Trans_QPSK = QPSK_modulation(dsss);%通过高斯信道Rec_QPSK = awgn(Trans_QPSK,SNR(i),'measured'); ReData = QPSK_demodulation(Rec_QPSK);%DSSSdsss2...
라이선스 보기 공유 MATLAB Online에서 열기 다운로드 Quadrature Phase Shift Keying (QPSK) Modulation and Demodulation. It includes codes to convert string to ASCII bitstream to modulate carrier. It also includes bit error rate and constellation diagram plotting. ...
[dsss,converted,PN2] = func_dsss(ldpc_code,pseudoNumber,fp); Trans_QPSK = QPSK_modulation(dsss); %通过高斯信道 Rec_QPSK = awgn(Trans_QPSK,SNR(i),'measured'); ReData = QPSK_demodulation(Rec_QPSK); %DSSS dsss2 = func_dsss2(ReData,pseudoNumber,fp); ...
1.算法仿真效果 matlab2022a仿真结果如下: 2.算法涉及理论知识概要 与很多的通信技术类似,扩频技术最初也应用于保密通信和制导系统等军事技术。除了在军事通信中的应用,扩频技术在无线通信领域也有发展。目前扩频通信技术已经在测距、卫星通信、GPS导航定位、移动通信、
The BER for BPSK, QPSK, QAM is performed using BERTool. Same channel i.e. AWGN is used for both the digital modulation techniques. Mainly use of MATLAB R2014a is carried out for complete system simulation and same will be verified using MATLAB simulation.Saloni Munjal...
Trans_BPSK = QAM64_modulation(dsss); %通过高斯信道Rec_BPSK = awgn(Trans_BPSK,SNR(i),'measured'); ReData = QAM64_demodulation(Rec_BPSK); %DSSS dsss2 = func_dsss2(ReData,pseudoNumber,fp); x_hat = round([dsss2+1]/2); [nberr,rat]= biterr(x_hat,Trans_data); ...
Further, MSK transmission can also be visualized as a variant of offset-QPSK technique, where sinusoidals are used for pulse shaping instead of rectangular. Further, we will discuss the receiver structure and show that bit error rate with coherent demodulation of MSK is equivalent to that of ...