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FFT_IFFT.rar
- (1)求出两维单色数字图象的傅立叶变换以及逆变换,除对比图象效果外,还要给出以中心点作为原点图象显示方式的傅立叶变换的频谱、相位谱,并验证两维傅立叶变换的性质。 (2)傅立叶变换后,计算图象能量谱的分布范围:画出包含图象能量92.0%,94.6%, 96.4, 98.0% 以及99.5% 的圆圈区域。,(1) obtained two-dimensional monochrome digital image of the Fourier transform and inverse transf
无线信道信号的混叠
- (1) 在某些无线信道中,多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因; (2) 无线信道中的多普勒谱有一种经典谱(classic spectrum),请解释产生这种谱形状的机理; (3) 请用Simulink工具编写代码(S-Function方式),产生一单径瑞利信道,其多普勒谱为经典谱,其中移动速率为120km/h。并请回答:证明自己用计算机产生的经典谱是正确的可能方法。 ,(1) in certain wireless channel, the Doppler f
cyclic2_am.rar
- 基于matlab,针对调幅AM、调频FM和调相PM信号,分析在不同的噪声环境,包括高斯白噪声、色噪声、非高斯噪声及正弦干扰中,各种信号的二阶循环谱。可根据需要改变程序中信号或噪声环境,分析结果。,Based on matlab, AM for AM, FM FM and PM phase modulation signals, analysis of noise in different environments, including Gaussian white noise, colored
AWGN-Rayleigh-BPSK-DSSS.rar
- 程序仿真了关于扩频系统在两种信道下的误码率,Process simulation of the spread spectrum system in about two channel BER
cdma.rar
- 直接序列扩频的缩写(DS-SS ) 二相相移键控(BPSK) matlab源代码,An acronym for Direct Sequence Spread Spectrum (DS-SS) two-phase phase shift keying (BPSK) matlab source code
SpectrumAllocationBasedonAucti
- 基于拍卖理论的频谱分配是认知无线电频谱分配领域的一个重要方法,本文件包括目前认知无线电研究方面几乎所有的基于拍卖理论的频谱分配文章,极具参考价值。,Spectrum auction based on the theory of cognitive radio frequency spectrum allocation is an important distribution method, this document include research in cognitive radio alm
tongyuan2.rar
- 通信原理实验软件仿真实验,包含: 单极性归零码(RZ)的波形及其功率谱。 单极性不归零码(NRZ)的波形及其功率谱。 一个完整的数字基带系统的仿真。 一份完整的报告和分析。 ,Communications software simulation experiment, including: unipolar return-to-zero (RZ) waveform and its power spectrum. Unipolar non-return-to-zero (NRZ) wav
spreadspectrum
- 扩频通信的经典书籍。老外的里程碑式贡献。-spread spectrum.a classic book of spread spectrum
fangzhen
- CR中基于能量检测的频谱感知matlab程序仿真-CR in the detection of spectrum sensing based on energy simulation program
Carrier_Trace
- 包括载波跟踪和伪码相位跟踪,用Matlab实现直接序列扩频信号的跟踪程序。-Including pseudo-code tracking and carrier phase tracking using Matlab implementation of direct sequence spread spectrum signal tracking procedures.
rayleigh
- 利用simulink的s-function方式仿真一个单径瑞利信道,其多普勒谱为经典谱-Simulink using the s-function simulation of a single-mode Rayleigh channel diameter, the Doppler spectrum for the classical spectrum
kuopin2
- 扩频隐写算法,希望对学习信息隐藏的同学有帮助-Spread-spectrum steganography algorithm, in the hope that students learn information hiding help
2
- 2. 关于无线信道的多普勒谱,请回答以下问题: (1) 在某些无线信道中,多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因; (2) 无线信道中的多普勒谱有一种经典谱(classic spectrum),请解释产生这种谱形状的机理; (3) 请用Simulink工具编写代码(S-Function方式),产生一单径瑞利信道,其多普勒谱为经典谱,其中移动速率为120km/h。并请回答:证明自己用计算机产生的经典谱是正确的可能方法。 -On the wireless c
nwmp3play_vc
- 简易MP3播放器采用VC实现非常简短实现MP3播放器功能,提供MP3随意拖放播放功能,同时提供频谱显示功能,界面非常友好,提供换肤功能。-Simple MP3 Player using VC to achieve the realization of a very short MP3 player function, the provision of free drag and drop MP3 player, while providing the spectrum display, the
HHT2
- 这是关于HHT的一个实际信号的HHT谱和边际谱源码。你只需复制到matlab即可运行。很实用。-This is about a real signal HHT HHT spectrum and marginal spectrum of the source code. You just copied to the matlab to run. Very practical.
energydetection
- 用MATLAB软件进行仿真能量检测频谱感知算法-MATLAB software to simulate the energy use of spectrum sensing algorithm for detecting
1st
- Simulink工具编写代码(MATLAB Function方式),产生一单径瑞利信道,其多普勒谱为经典谱,其中移动速率为120km/h,含理论描述多普勒经典谱-Simulink tools for writing code (MATLAB Function mode) to produce a single path Rayleigh channel, the Doppler spectrum for the classical spectrum, where mobile speed of
kuoping
- 扩频通信中的捕获问题,用GOLD码进行扩频, PN码相位捕获,利用捕获的相位,接收机产生偏移的GOLD码,进行解扩和误码率计算-Capture the problem in spread spectrum communication, spread spectrum codes with GOLD, PN code phase acquisition, the use of capture phase, the receiver generates offset GOLD code, for d
gaojiepu
- matlab的高阶谱(包括双谱),包括高阶谱的直接法及间接法,用于信号的检测及时差估计。-matlab higher order spectra (including dual spectrum), including high-end spectrum of the direct method and indirect method for signal detection time difference estimates.
FFT_armtest
- 自己写的一个基于eMbedded Visual C++的音频采集以及频谱分析小程序。 包括录音,回放,时域波形,频谱图-Based on the eMbedded Visual C++ of the audio spectrum analysis procedures. Including recording, playback, time-domain waveform, frequency spectrum