搜索资源列表
mod_qpsk
- QPSK调制matlab程序 包括基带成型滤波器 （升余弦滤波器）-QPSK modulation Matlab procedures including baseband shaping filter (or cosine filter)
wigner1
- 设采样频率为1Hz，对于淹没在复高斯白噪声中的信噪比为 的两个复LFM信号，采用子带带宽为0.1Hz的升余弦滤波器，共9个子带滤波器构成的滤波器组，时间窗为窗长为256的矩形窗，进行仿真-based sampling frequency of 1Hz. For drowned in the complex Gaussian white noise to the signal-to-noise ratio of 2 Minute LFM, using sub-band bandwidth of 0
shengyuxian
- 理想低通滤波器特性曲线绘制 频率图分析 升余弦滤波器特性曲线绘制 频谱图分析 部分响应系统滤波器特性曲线-Ideal low-pass filter frequency characteristic curve analysis drawn up cosine filter characteristic curve analysis part of the spectrum mapping system filter response curve
filterbank8
- 8 通道双正交余弦调制滤波器组实现，滤波器的采样频率为 Fs:20000Hz 设计的低通原型的通带频率为625Hz 阻带衰减80db，滤波器的系数长度为512-8-channel biorthogonal cosine-modulated filter banks to achieve, filter sampling frequency Fs: 20000Hz designed a prototype low-pass frequency of 625Hz passband stopband
DSP
- 【摘 要】为了减少集成电路硬件复杂度，针对QAM 调制软件实现速度慢的问题，在分析MQAM 调制原理的基础上，采用 直接频率合成实现正余弦信号及无时延改进的滤波器编程方法，提出一种快速实现MQAM 调制算法的软件编程思想，并以 TMS320C55X 为平台[1，4]，将MQAM 调制算法进行了C 编程实现。结果表明：该编程方法能快速产生MQAM 调制信号。 【关键词】多电平正交幅度调制；脉冲成形滤波器；直接频率合成；数字信号处理-【Abstract】 In order to redu
Correlation-filter-testing-platform
- 可以实现正余弦，方波相关滤波功能，并可以观察原理误差，测量恒带宽特性，研究低通滤波器与带宽的关系，是一个综合性模拟实验平台-Can achieve positive cosine, square wave correlation filter function, and can observe the principle error, measured bandwidth characteristics constant, low-pass filter with the bandwidth o
8filterbank8-
- 8 通道双正交余弦调制滤波器组实现，滤波器的采样频率为 Fs:20000Hz 设计的低通原型的通带频率为625Hz 阻带衰减80db，滤波器的系数长度为512 -8-channel biorthogonal cosine modulated filter banks achieve filter sampling frequency Fs: 20000Hz design of the low-pass prototype passband frequency of 625Hz stopban
root_raise_cos
- matlab代码，根升余弦滤波器对数字基带信号进行成型滤波，匹配滤波-Matlab code, the root raised cosine filter on the digital baseband signal shaping filter, matched filter
16QAM
- 仿真练习（第六次刘课件中有关于噪声的添加方法） ？ 编写一个含QAM传输的发送和接收模块 ？ 分别采用复基带仿真和实带通仿真两种形式 ？ 复基带仿真时过采样率为4倍,实带通仿真时过采样率为20倍, 实带通仿真时, 载波频率为符号率的4倍 ？ 发端采用滚降系数0.5的根号升余弦滤波器 ？ 画出Eb/N0=15dB时的接收波形(收滤波前),取100个采样 ？ 画出发端输出的眼图和收端过匹配滤波后的眼图(画眼图时不加噪声) ？ 统计
MY_FILE
- 内有，正余弦产生，幅度，频度设置，抽样，DFT,数字滤波器设计，提取黑白图片中的曲线-There are cosine generation, amplitude, frequency settings, sampling, DFT, digital filter design, extracted a black-and-white picture of the curve
shengyuxian
- 产生升余弦滤波器的时域与频域波形，带有默认参数，滚降系数为alpha。-Time domain and frequency domain waveforms produce raised cosine filter with default parameters, roll-off factor for the Alpha.
krishna_rcosflt
- 牛人krishna示例的升余弦滚降滤波器的时域和频域仿真-the simulation of raised cosine filter for both time and frequency domains，by krishna, happy learning!
RaiseCosFilter
- 升余弦滤波器，matlab编程，从csdn上下的-raised cosine filter
2PSK
- 介绍了2PSK的调制解调原理，接收机有带通滤波器和升余弦滤波器接收的性能比较-Describes the modulation and demodulation principle 2PSK, the receiver has a band-pass filter and a raised cosine filter receiver performance comparison
baseband
- 数字基带传输系统的实现。包括升余弦滤波器、匹配滤波器的实现、高斯信道的实现。-Digital baseband transmission system. Including the raised cosine filter, matched filter is implemented, Gaussian channel implementation.
Digital-baseband-transmission
- 数字基带传输系统实验，升余弦滤波器，匹配和非匹配方式-Digital baseband transmission system experiment, raised cosine filter, matching and non-matching approach
16qam
- 16QAM通过带限信道，设码元速率为1000波特，传输的滚降系数是0.75的滚降升余弦滤波器-16QAM by band-limited channel, set the symbol rate is 1000 baud, roll-off factor of transmission is 0.75 rolloff raised cosine filter
pulse_shaping_filter
- 无线通信系统发射端仿真中，脉冲成型滤波器。是一种根升余弦滤波器。-A pulse shaping filter in the wireless communication system. It is a root raised cosine filter.
rcosine
- 简单介绍根升余弦滤波器的概念和设计，附有毕业设计。还有一些代码。-Brief root raised cosine filter concept and design, with graduation. There are some code.
raisecos.m
- 升余弦滚降滤波器，滤波器，并有不同系数下对比图(Raised cosine roll off filter, filter, and comparison chart under different coefficients)