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16qam_channel_encode
- 一、 本程序采用16QAM调制方式，对一串2进制信源进行调制，采用（7，4）循环码对信源做信道编码，用升余弦滚降函数进行基带调制，再调到高频信道；在信道上加入高斯白噪声，运用匹配滤波器解调，画出解调星座图，运用最小欧氏距离译码判决，再对信号进行信道解码，画出采用信道编码技术和不采用信道编码技术的误比特率图。-First, this program uses 16QAM modulation mode, for a string of two binary source is modulated,
Single-Carrier-FDMA
- 仿真SC-FDMA，内含说明文档，适合初学者-Comparison of OFDMA and SC-FDMA PAPR can choose a variety of modulation, filter forming methods, suitable for beginners
chirp_sig11
- 带有匹配滤波器的雷达信号调制和脉冲压缩技术的Matlab程序 -With matched filter radar signal modulation and pulse compression technology Matlab procedures
LFM_signal
- 关于线性调频波的三个小程序，包括线性调频波的生成，FFT变换，线性调频信号通过匹配滤波器-Linear frequency modulation wave on the three small procedures, including the generation of LFM wave, FFT transform, linear frequency modulated signal through the matched filter
QAM_modu
- matlab下的simulink下实现16QAM调制解调，采用随机信号发生器，包括成形滤波和匹配滤波及信号星座图还原-simulink of matlab under the 16QAM modulation and demodulation implementation, using a random signal generator, including the shaping filter and matched filter and the signal constellation di
Bernoulli
- simulation simulink of a modulation/desmodulation in gmsk with filter. -simulation on simulink of a modulation/desmodulation in gmsk with filter.
FDM
- AM modulation with audio anti alliasin filter and fdm
matlabpograms
- matlab pograms of all tipes like modulation filter design
filter
- 2个程序，MATLAB设计的一个滤波器，将含3个频率分量的信号通过该滤波器，滤除2个高频分量，得到只含低频的信号。 单边带信号调制，用MATLAB实现，是学习信号调制的一个好例子。-Two procedures, MATLAB design a filter, will contain three frequency components of the signal through the filter, filter out high frequency components of two
qam
- 一、 本程序采用16QAM调制方式，对一串2进制信源进行调制，用升余弦滚降函数进行基带调制，再调到高频信道；在信道上加入高斯白噪声，运用匹配滤波器解调，画出解调星座图，运用最小欧氏距离译码判决，计算误比特率。-First, this program uses 16QAM modulation mode, for a string of two binary source is modulated with a raised cosine roll-off function for base-ba
extended_reciever
- Bit Error Rate analysis of an Extended Receiver for Rectangular PAM. The performance of a digital communication system in the presence of additive white Gaussian noise (AWGN) can be assessed by the measurement of the bit error rate (BER). The Si
009
- 利用matlab对IS-95前向链路系统的仿真，包括扩频调制，匹配滤波，RAKE接收等相关通信模块，仿真环境为加性高斯白噪声信道. -Using matlab on the IS-95 forward link system simulation, including the spread spectrum modulation, matched filter, RAKE receiver and other related communication module, the simula
gmsk
- ：为了论证高斯最小频移键控(GMSK)信号在时域和频域的相互关系，分析了GMSK信 号调制原理和滤波器传递函数，建立了GMSK调制和解调模型。-: In order to demonstrate Gaussian Minimum Shift Keying (GMSK) signal in time domain and frequency domain, the relationship between the analysis of GMSK signal modulation princ
IS95
- 此函数用于IS-95前向链路系统的仿真，包括扩 频调制，匹配滤波，RAKE接收等相关通信模块。 仿真环境: 加性高斯白噪声信道. 数据速率 = 9600 KBps - This function is used in IS-95 forward link system simulation, including the expansion frequency modulation, matched filter, RAKE receiver and oth
FSK
- 设计一个2FSK数字调制系统，要求： （1）设计出规定的数字通信系统的结构； （2）根据通信原理，设计出各个模块的参数（例如码速率，滤波器的截止 频率等）； （3）用Matlab或SystemView 实现该数字通信系统； （4）观察仿真并进行波形分析； （5）系统的性能评价。 -Design a digital modulation system 2FSK require: (1) design a digital communication system
16QAM
- 讨论了"’+,- 调制时应用不同类型和参数的滤波器对系统性能的影响/针对"’+,- 的特点.采用 了存储波形累加求和法来代替一般的滤波成形.提高了调制速度/并利用其相位对称的特点将波形存储表压 缩为原容量的"0$.有效地节约了存储空间-Applications are discussed " ' +,- modulation type and parameters of different filters on the system performance/characte
mod_demod
- 在matlab环境下实现通信系统中的BPSK，QPSK，16QAM，调制。成型滤波和匹配滤波都采用根升余弦函数。-In the matlab environment to achieve communication system BPSK, QPSK, 16QAM, modulation. Shaping filter and matched filter are used root raised cosine function.
cic
- 在信号处理中，信号发射时，信号通过载波，调制，以电磁波的形式发射出来 在接收端，射频信号通过天线接收，超外差式等方式进行处理，变频到中频 然后通过数字技术对中频信号进行处理，此时的中频信号采样率很高，多达几十兆赫 而要解调出来的信号很小，此时就要经过滤波来得到我们需要的信号 如果直接设计滤波器，阶数会非常庞大，软件，硬件设备都承受不了 因此，一般常用的技术是进行下变频处理，其主要技术就是通过抽取滤波进行下变频 常用的滤波器就是CIC抽取, 希望可以帮助一些坛友解决基本的问
FMThoanchinh
- Discrete multitone (DMT) modulation is an attractive method for communication over a nonflat channel with possibly colored noise. The uniform discrete Fourier transform (DFT) filter bank and cosine modulated filter bank have in the past been used in
Amplitude Modulation (Baseband, Passband)
- A key consequence of the usual double-sideband amplitude modulation (AM) is that the range of frequencies the signal spans (its spectral bandwidth) is doubled. Thus, the RF bandwidth of a signal (measured from the lowest frequency as opposed to 0 Hz)