Description: 基带数字信号通过成形滤波（选用升余弦滚降函数）然后进行载波调制-Base-band digital signal through the shaping filter (raised cosine roll-off optional function) and then proceed to carrier modulation Platform: |
Size: 4096 |
Author:黄华 |
Hits:
Description: matlab实现的多个基础程序和报告并有流程图（1） 绘出正弦信号波形及频谱。
（2） 单极性归零（RZ）波形及其功率谱，占空比为50％。
（3） 升余弦滚降波形的眼图及其功率谱。滚降系数为0.5。发送码元取值为0、2。
（4） 最佳基带系统的Pe~Eb\No曲线，升余弦滚降系数a=0.5，取样值的偏差是Ts/4。
（5） Pe~Eb\No，升余弦滚降系数a=0.5，取样时间无偏差，但信道是多径信道，C(f)=abs(1-0.5*exp(-j*2*pi*f*dt))，dt=Ts/2。
（6） 仿真数字基带传输系统，包括输入、输出信号波形及其功率谱，眼图（升余弦滚降系数a=0.5），Pe~Eb\No曲线，取样时间无偏差。
-matlab realize a number of the basis of procedures and reports and have flow chart (1) mapped sinusoidal signal waveform and spectrum. (2) unipolar return-to-zero (RZ) waveform and its power spectrum, 50 duty cycle. (3) Raised Cosine rolloff waveform eye diagram and power spectrum. Roll-off factor of 0.5. Send code values for the 0,2 million. (4) the best base-band system Pe ~ EbNo curve, raised cosine roll-off factor a = 0.5, sampling bias is the value of Ts/4. (5) Pe ~ EbNo, raised cosine roll-off factor a = 0.5, sampling time deviation, but the channel is a multipath channel, C (f) = abs (1-0.5* exp (-j* 2* pi* f* dt)), dt = Ts/2. (6) Simulation of digital baseband transmission system, including input and output signal waveforms and power spectrum, eye diagram (raised cosine roll-off factor a = 0.5), Pe ~ EbNo curve, sampling time deviations. Platform: |
Size: 311296 |
Author:dongming |
Hits:
Description: 升余弦滚降的源程序其对通信系统仿真有很大的用出-Raised cosine roll-off the source of its simulation of communication systems have a lot of use out of Platform: |
Size: 3072 |
Author:wwge |
Hits:
Description: 升余弦滚降的误码率和信噪比曲线，取样时间无偏差，但信道是多径信道，衰减系数0.5
傅立叶变换及反变换参见t2f-and-f2t-Raised cosine roll-off of the bit error rate and signal to noise ratio curve, sampling time deviation, but the channel is a multipath channel, the attenuation coefficient of 0.5 Fourier Transform and inverse transform see t2f-and-f2t Platform: |
Size: 1024 |
Author:刘临政 |
Hits:
Description: 升余弦滚降信号及其功率谱。可以通过它实现通信系统中常用的升余弦滚降系统。用处极大哦~-Raised cosine roll-off signal and its power spectrum. Can achieve through its communication systems commonly used raised cosine roll-off system. Oh ~ great usefulness Platform: |
Size: 1024 |
Author:zhaomin |
Hits:
Description: 升余弦滚降系统的设计，以及其误码率。详细注释及波形曲线图。-Raised cosine roll-off system design, as well as its error rate. Detailed notes and waveform graph. Platform: |
Size: 2048 |
Author:zhaomin |
Hits:
Description: 最佳升余弦滚降系统的实现及其误码率，比较适合初学者学习，可以更好的理解matlab的编程及其使用-Raised cosine roll-off the best system and the bit error rate, more suitable for beginners to learn, you can better understand the programming and the use of matlab Platform: |
Size: 1024 |
Author:zhangwei |
Hits:
Description: 升余弦滚降滤波系统的误码率 通信原理的应用-Raised cosine filter roll-off system bit error rate of application of the principle of communication Platform: |
Size: 1024 |
Author:紫岚燕子 |
Hits:
Description: 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-band modulation, and then transferred to high-frequency channel in the channel by adding Gaussian white noise, the use of matched filter device demodulator, draw demodulation constellation, using the minimum Euclidean distance decoding decision, calculate bit error rate. Platform: |
Size: 107520 |
Author:zhaoyang |
Hits:
Description: 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, using (7,4) cyclic code of the source-channel coding to do with a raised cosine roll-off function for base-band modulation, and then transferred to a high frequency channel in the channel by adding Gaussian white noise, the use of matched filter demodulation, demodulation constellation plot, using the minimum Euclidean distance decoding decision, and then right channel signals, decoding, channel coding techniques used to draw and non- channel coding techniques using bit error rate plans. Platform: |
Size: 90112 |
Author:zhaoyang |
Hits:
Description: 通信原理仿真实验：AM、FM调制、单双极性归零码波形及功率谱、根升余弦滚降系统功率谱密度及眼图、信源分布对AMI功率谱的影响。-Communication Theory simulation: AM, FM modulation, single and double polarity zero code waveform and power spectrum, root raised cosine roll-off system power spectral density and eye diagram source distribution of the power spectrum of AMI. Platform: |
Size: 1052672 |
Author:亓冀 |
Hits:
Description: 对原始码元序列进行基带成型，采用的是根升余弦滚降滤波器，可以更改参数变成升余弦滚降滤波器-Baseband shaping the source sequence, using root raised cosine roll-off filter, you can change the parameters into a raised cosine roll-off filter Platform: |
Size: 1024 |
Author:李赞 |
Hits:
Search - raised cosine roll off