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PCM
在实际的调谐解调电路中,采用的是非相干载波解调,本振信号与发射端的载波信号存在频率偏差和相位抖动,因而解调出来的模拟I、Q基带信号是带有载波误差的信号。这样的模拟基带信号即使采用定时准确的时钟进行取样判决,得到的数字信号也不是原来发射端的调制信号,误差的积累将导致抽样判决后的误码率增大,因此数字QPSK解调电路要对载波误差进行补偿,减少非相干载波解调带来的影响。(In the actual tuning and demodulating circuit, non-coherent carrier demodulation is adopted, and the frequency deviation and phase jitter of the local oscillator signal and the carrier signal of the transmitting end are present, and thus the demodulated analog I and Q baseband signals are signals with carrier error.)
- 2019-01-30 20:16:08下载
- 积分:1
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ARMA
这个程序采用现代谱估计的ARMA参数模型算法对信号的功率谱做了估计(The program uses the ARMA parameter model algorithm of modern spectral estimation to estimate the power spectrum of the signal.)
- 2020-11-02 20:49:52下载
- 积分:1
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dymoum-0.3
Dymo routing protocol
- 2017-10-12 21:00:30下载
- 积分:1
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wave propagation
说明: 大气湍流多步仿真程序源码,欢迎下载,大气光通信可用(Atmospheric turbulence multi-step simulation program source code, welcome to download, atmospheric optical communication available)
- 2020-12-10 17:37:06下载
- 积分:1
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12
说明: 本篇讲解遥控信号的ASK、FSK、PSK解调与动画设计的Matlab程序实现。
(This remote control signals on ASK, FSK, PSK demodulation and animation design of the Matlab program.)
- 2008-11-23 17:38:09下载
- 积分:1
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modulation
说明: 熟悉OQPSK的基本原理、调制解调技术,掌握MATLAB中M文件的使用及相关函数的调用方法,在此基础上通过MATLAB编程来实现OQPSK的调制与解调,完成项目(OQPSK, modulation and demodulation, noise ,MATLAB, M file.)
- 2020-04-08 10:25:13下载
- 积分:1
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kssign_functions
语言的文法规则 说明 对原编译程序作了如下修改,增加了输入文件(The grammar rules of the language have been modified as follows to add input files to the original compile)
- 2019-01-01 01:12:04下载
- 积分:1
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gmsk
说明: :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 principle and the filter transfer function established model for GMSK modulation and demodulation.)
- 2010-03-16 15:43:36下载
- 积分:1
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HCF-Spec183-(Common-Tables-Specification)
HART Communication Foundation - Common Tables Specification
- 2020-11-20 14:49:36下载
- 积分:1
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zhuanhuandaxiaoxiezifu
上载失败04,关闭上载失败04,关闭窗口窗口(Upload failed 04, 04 off the upload fails, close the window, the window)
- 2010-10-14 20:42:44下载
- 积分:1