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fft.rar
- implement 1D and 2D FFT and Inverse 2D FFT ,obtain the power spectrum from a set of FFT coefficients and achieve the Butterworth Lowpass Filter,implement 1D and 2D FFT and Inverse 2D FFT ,obtain the power spectrum from a set of FFT coefficients and a
DSSS.rar
- 一个四用户的扩频通信系统,扩频增益为N=16,采用Walsh码进行直接序列扩频,BPSK调制,无线信道为AWGN(加性高斯白噪声信道)信道(AWGN信道:不考虑通信信道信号时,由宽频范围描述的统计随机无线噪声。)。在接收端进行解扩,解调,判决,通过仿真得到其中一个用户的误比特率与信噪比的仿真结果。,A four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct
dft.rar
- 基于OpenCV的源码, 实现了利用DFT离散傅里叶变换计算图像的功率谱。,OpenCV based on the source, the use of implementation of the Discrete Fourier Transform DFT calculation of the power spectrum image.
FHSS_DSSS_CDMA.rar
- 直接序列扩频DSSS, 跳频扩频FHSS, 码分多址CDMA编译码, 的实现,the realization of Direct Sequence Spread Spectrum DSSS, frequency hopping spread spectrum FHSS, Code Division Multiple Access CDMA codec,
Cognitiveradionetworkinspectru
- 认知无线电网络中频谱分配算法的研究 比较权威,Cognitive radio network in spectrum allocation algorithm
m_W.rar
- 产生m_W序列,并计算其功率谱、自相关系数和互相关系数。,M_W generated sequences, and calculate its power spectrum, since the correlation coefficient and the number of mutual relations.
music-kalman.rar
- 空间谱估计的music仿真程序,以及自适应卡尔曼滤波算法。,Spatial spectrum estimation of the music simulation program, as well as the adaptive Kalman filter algorithm
discrete-spectrum-correction-method
- 离散频谱比值校正法 hamming hanning-The ratio of discrete spectrum correction method hamming hanning
Spectrum-Analyzer---Speech
- 我做的频谱分析仪的新功能,给大家分享,具体如何实现可以查找有关资料。只是分享自己的新内容。-I do a new spectrum analyzer functions, to share, how you can find specific information. Just to share their new content.
estimate-powers-spectrum
- 根据维纳-辛钦定理,广义平稳随机过程的功率谱是自相关函数值。但对于许多实际应用问题,可资利用的观测数据往往是有限的,所以要准确计算功率谱通常是不可能的。比较合理的目标是设法得出功率谱的一个好的估计值,这就是功率谱估计。本文通过分析经典功率谱估计和现代功率谱估计的多种方法,比较各种方法的优缺点。-According to Wiener- Xinqin theorem, wide-sense stationary random process is the power spectrum of the
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
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
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