搜索资源列表
dsb
- 已知信号的m(t)dsb-am调制 -dsb-am
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
tiaozhi
- 关于通信信号的调制,包括很多种哦,希望对大家有用,谢谢了啊!-On the modulation of communication signals, including a variety of oh, we hope to be useful, thank you, ah!
power-spectrum
- QPSK(四进制相移键控)信号调制解调过程(经高斯信道)的仿真-QPSK (quaternary phase shift keying) signal modulation and demodulation process (by the Gaussian channel) of the simulation
8
- 设计一个理想通信系统,实现信息字符流的传输。 发射器: <1>将消息(字符串形式)编码成一个符号序列; <2>用脉冲成形将串符号序列转变成模拟脉冲信号; <3>将模拟脉冲信号调制到载波信号上。 接收器: <1>对接收的信号进行采样; <2>解调信号成基带信号; <3>将信号恢复成字符串。-Design an ideal communication system, the realiz
zuidasiranbisuanfa
- 针对MPSK信号的调制识别问题,本文提出了一种新的最大似然比调制分类算法,采用平均释然比检测方法,通过对接收信号的的离散化和对主要参数的简要近似,得到了离散情况下的近似分类统计量!-MPSK signals for modulation recognition problem, we propose a new maximum likelihood modulation classification algorithm, using an average of more than relieve
matlab-signal-modulation-
- matlab信号调制与解调方面的书 我自己看了一遍 感觉还不错-matlab signal modulation and demodulation aspects of the book I read it again I feel pretty good
07950213
- 扩频通信系统仿真 ——系统将基带信号(即信息)的频谱扩展至很宽的频带上,然后再进行传输,即将欲传输的信息数据用伪随机序列编码调制,实现频谱扩展,然后通过信道编码发送出去;接收端采用与发送端完全相同的伪随机序列作为本地解扩信号进行相关处理,以恢复信息,最后进行解调,完成整个系统的接收。-Simulation of spread spectrum communication system- the system baseband signal (ie, information) be extende
bocc
- BOC信号调制的源码,及BPSK产生信号的源码-BOC signal modulation of the source, and the BPSK signal source generating
14
- 随着信息容量的增加和频率资源的稀缺,为提高单位频带利用率,在微波通信系统中越来越多地采用多电平多相位的复杂信号调制方式,尤其是正交幅度调制(QAM)得到了大量的应用,从早期的4QAM到今天的16QAM。高阶QAM调制大容量数字微波通信系统为了保证服务质量,降低误码率,-long with the increase of information capacity and frequency resource scarcity, for improving the utilization ratio
psk
- psk调制解调及相应误码率计算。随机产生一正弦信号并进行相应的调制解调。-psk modem and the corresponding bit error rate. Randomly generate a sinusoidal signal and the corresponding modem.
QAMSNR
- QAM信号调制解调的仿真以及解调误码率的比较。-QAM signal modulation and demodulation of the demodulation error rate simulation and comparison.
burst
- 这是激光猝发信号的信号模拟,他是信号模拟的基础,也是信号调制与解调的信号源。-This is a laser burst signal analog signal, he is the basis of signal simulation is the signal modulation and demodulation of the signal source.
matlab_kechensheji(xinhaotiaozhi)
- 武汉理工大学matlab课程设计 信号调制-wuhan university of technology
sigmodulation
- 各种数字调制信号的产生,包括QAM,FSK,PSK,MATLAB程序-All kinds of digital modulation signal generation, including QAM, FSK, PSK, MATLAB program
QPSK
- 本压缩包是里面是用matlab编写的QPSK信号调制与解调的程序,程序十分简练。-The compressed package is written in matlab which is QPSK signal modulation and demodulation process, the program is very concise.
digital-modulation
- 文件用于数字通信信号的调制方式识别,包含调制信号的产生,模拟通信信道,以及特征量的计算(共5个特征量,分两个程序计算),最后是信号调制方式的识别。-Files for digital modulation recognition of communication signals, including modulation signal generation, Simulation communication channel, and the calculation of features(a t
other
- 另一种数字信号调制识别方式,没有给出正确率-Another digital signal modulation recognition methods, did not give the correct rate
identification
- 实现数字信号调制方式的识别,包括2ask4ask 2fsk4fsk 2psk4psk-identification of modulated digital signal