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matlab_cdma
- 该程序仿真CDMA接收机的功能,包括解扩,解交织,信道编码(卷积码),解码,信源编码(CRC)解码5个功能模块,生成用于数字基带传输的信号序列。 仿真CDMA发射机的功能,包括随机序列的产生,信源编码尾比特添加, 信道编码(卷积编码),分组交织和扩频调制6个功能模块,生成用于数字基带,传输的信号序列,输出还包括用于解调所需要的信源编码尾比特值add_bits,交织器的尾比特值i_add_bits-CDMA receiver functions, including despreading,
zhidao
- 实验一 FSK调制解调系统实验 实验二 数字基带信号实验 实验三 脉冲编码调制(PCM)系统实验 实验四 移相键控(PSK)实验
数字基带信号及其功率谱
- 仿真源程序
m
- M序列的源代码,用于基带信号发生器的设计 -M series source code for the base-band signal generator design
rayliy
- 瑞利信道仿真,包括基带信号的输入与输出,希望对你有帮助-rayliy communication simulink
ASK
- 通过本课程设计使学生深入理解和掌握ASK通讯系统的各个关键环节,包括基带信号形成、调试、解调、滤波、传输、噪声对通信质量的影响等。在数字信号处理实验课的基础上更加深入地掌握数字滤波器的设计原理及实现方法。使学生对ASK系统各个关键点的信号波形及频谱有深刻的认识。-Through the curriculum design so that students understand and grasp the depth of communication systems ASK all key lin
wddc_module
- 数字下变频的Verilog程序,测试可以直接使用,将A/D信号下变频为基带I,Q两路信号-Digital down conversion of the Verilog program, testing can be used directly to A/D signal down-conversion to baseband I, Q signals two
2-LMS-equalizer
- 假设每个延时单元延时10ms.被传输的基带信号x(t)是一个0,1交替变换的矩形二进制脉冲序列,脉宽为10ms,并假设x(t)通过一个稳定的散射信道后才到达均衡器,成为2径信号,这两路信号幅度相等 ,相隔15ms。用MATLAB实现一个2级LMS均衡器-equalizer
example4_6
- :滤波 fs=400 采样频率,必须大于两倍基带信号最高频率 ts=1/fs 采样时间间隔 T=5 时间窗大小 t=0:ts:T -hf1=zeros(1,N) hf1(f<=B1&f>=-B1)=1 y1=hf1.*fftshift(y) figure subplot(211) plot(f,abs(fftshift(y))/N,f,hf1, r-- ) axis([-fs/2,fs/2,0,1.2]) title( 原信号
example4_4
- 例4:在sinc(t)信号中叠加噪声,分析对应频谱 fs=100 采样频率,必须大于两倍基带信号最高频率 ts=1/fs 采样时间间隔 T=2 时间窗大小 - x=x+0.1*randn(1,N) x=awgn(x,-10, measured ) figure plot(t,x) title( 时域信号图 ) xlabel( t /s ) y=fft(x,N) figure if mod(N,2)~=0
8.9-ASK-of-VHDL
- ASK调制VHDL程序及仿真:基于VHDL硬件描述语言,对基带信号进行ASK振幅调制-ASK modulation and VHDL simulation: based on the VHDL hardware descr iption language ASK amplitude modulation, the baseband signal
GPS-acquicition
- GPS领域基带信号处理程序之捕获程序,这是整个程序中独立出来的捕获程序。对于初学者,掌握编程很有帮助。-GPS baseband signal processing program of capture, this is the capture program comes out independently in the whole program. Master programming is very helpful for beginners.
SubVIs
- 模拟FM信号的解调子程序,包括下变频、A/D采样、正交解调,最后输出基带信号。-Subroutine analog FM demodulation signal, comprising down-conversion, A/D sampling, orthogonal demodulation, and finally outputs a baseband signal.
AM
- 基带信号位一个150-400HZ内,幅度随频率逐渐递减的音频信号。-In a baseband signal 150-400HZ, gradually decreasing the amplitude versus frequency of the audio signal.
3
- 基于Labview的FM调制,可调节基带信号频率和载波信号频率,便于观察-Labview-based FM modulation, adjustable signal frequency and the frequency of the carrier signal baseband, easy to observe
AM-Modulation
- 用Labview实现了AM调制,载波,基带信号的频率和幅值在前面板中可调。-AM modulation in Labview
2fsk
- 2FSK是利用数字基带信号控制在波的频率来传送信息。经过调制后的2FSK数字信号通过两个频率不同的带通滤波器f1、f2滤出不需要的信号,然后再将这两种经过滤波的信号分别通过包络检波器检波,最后将两种信号同时输入到抽样判决器同时外加抽样脉冲,最后解调出来的信号就是调制前的输入信号。-gudi hduidf hdag sdd w
Modulation
- labveiw实现基带信号的幅度调制(AM),频率调制(FM)和相位调制(PM),可以在波形图中看到调制信号和调制后信号的叠加和对比,可以看到频域波形。载波与基带幅度和频率参数均可改变。-Baseband AM/FM/PM in labview. In the vi, you ll be able to see the modulated signal in both time and frequency domain.
MATLAB-simulink-communication(up)
- MATLAB通信基础,SIMULINK仿真基础、离散信号随机信号、低通带通、高斯白噪声信道、多径衰落信道、幅度调制、角度调制、正交信号传输特性、二进制基带信号的最佳接收等。-Communication based on MATLAB and SIMULINK simulation, random signal, discrete signal to a low-pass bandpass, white gaussian noise channel, multipath fading channe
AM-modulation
- 实现基带信号的幅度调制AM和解调,labview程序亲测可用-To achieve the amplitude modulation of the baseband signal AM and demodulation