搜索资源列表
1-2DoublebandSpecrum
- 这是一个双边带频谱分析仿真的Systemview源代码。-This is a bilateral spectrum analysis and simulation with the Systemview source code.
high-resolution-one-dimension
- 高分辨率要求系统具有大的带宽，瞬时带宽的增加必将提高系统对硬件的要求，本文采用方便灵活的步进频率波形信号。脉间频率步进波形通过子脉冲载频的步进变化来获得大的有效带宽，使成像具有高分辨率，采用加窗和补零方法提高信噪比，但该信号对目标径向速度非常敏感。采用补零方法提高距离取样分辨率，使距离像细化，并用公式说明了补零只能提高距离取样分辨率，并不能改变频率步进信号的距离分辨能力。该信号波形对目标径向速度的敏感，使目标能量分散到邻近的距离单元造成
drawingbandgap_3
- 一个用来进行频谱分析的程序，可以根据记录的信号序列的富氏变换来求得本征频率值-used for a spectrum analysis procedures, can record the signal sequence of Fourier transform to obtain the frequency of levy
GraphicSpectrumAnalysis
- 使用VC++实现,对图形做频谱分析.文档中含有相关知识背景说明及实际测试结果.-use of graphics power spectral analysis. Documents containing background notes related knowledge and practical test results.
stft_demos
- stft的几个例子，包括对同一信号输出其等高线图、三维频谱图等，对于初学者很有帮助。-stft several examples, including the same right to export its signal contour maps, three-dimensional map of the spectrum. useful for beginners.
Fourierclassicalanalyse
- 傅里叶变换和傅里叶变换的性质,周期信号和非周期信号的频谱分析,卷积和卷积定理,抽样信号的傅里叶变换和抽样定理,相关、能量谱和功率谱.-Fourier transform and Fourier transform nature, the cycle-cycle signal and the signal spectrum analysis, Convolution and convolution theorem, the samplin
realtime-display
- 实时显示频谱,基于VC++的系统-real-time display of spectrum, based on the VC system
multiratefliter
- 设模拟带通信号频率范围1KHz—1.1KHz，设计一个采样频率8KHz数字频谱分析系统，要求频率分辨率0.1Hz。若对信号直接用FFT进行频谱分析-simulation based communications, with the frequency range 1KHz- 1.1KHz. Design of an 8 KHz sampling frequency digital spectrum analysis system req
spectrum_analysis
- 高阶频谱分析工具(数字信号处理Matlab例程)-higher order spectral analysis tools (digital signal processing Matlab routines)
03607_28
- DFT进行频谱分析时的三种现象 1、混叠：对连续信号采样，要求连续信号是带限的，采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。 采样前加低通滤波器防混叠 2、频谱泄漏：DFT对时域信号进行了截断（相当于采样信号乘了一个窗函数），时域的乘积相当于频域卷积，改变了原信号频谱。 改用其他窗函数（非矩形）改善泄漏。 3、栅栏现象：DFT 只给出了频谱在采样点上的取值，采样点间的频谱内容丢失。-DF
pinpubj01
- MSK调制，GMSK调制,FMSK调制三种方式的频谱比较-MSK modulation, GMSK modulation, FMSK three ways modulation spectrum comparison
soundcardsample564
- 基于声卡的虚拟仪器设计 ，示波器显示， 频谱显示， 频率显示-sound card based virtual instrument design, oscilloscope, spectrum, frequency show
VC_Spectrum.Base.On.AudioCard
- VC实现基于声卡的频谱分析.可将麦克风上传的声音进行频谱分析（应用FFT变换）并回显。-VC Sound Card Based on the analysis of the spectrum. Can be uploaded to the microphone for voice spectrum analysis (FFT Transform) and a back.
siganlandsystemusingMatlab
- 这是一个用Matlab编写的程序集，可以实现一些声音和图象的处理。声音的处理有：LPC，FFT，共振峰，频谱等。图象的处理也有很多，都有源代码和参考代码。还有非常友好的界面。-This is a Matlab prepared by the procedure set, can achieve some of the voices and image processing. Voice processing : LPC, FFT, fo
wiener_1
- 一维WIENER的方法.包括了滤波器的频谱图和幅度响应图.可直接使用-one-dimensional approach. Including the filter frequency spectrum and the magnitude of response plans. Can be used directly
pingpufenxi
- 对语音信号的频谱分析的程序，用于提取参数来进行分析或者合成。-right voice signal spectrum analysis of the procedures used to extract parameters for analysis, or synthesis.
qpskwork
- 此程序实现了用matlab仿真qpsk的调制过程，并绘出调制图形及频谱-this program by using Matlab simulation qpsk the modulation process, and draw graphics and modulation spectrum
brainwave
- 脑电信号分析软件，有频谱，功率谱分析，档案管理，滤波处理等功能-EEG analysis software, spectrum, power spectrum analysis, file management, filtering, and other functions
sf_200642703015
- 频谱分析仪,由VB实现,(来自互联网)-spectrum analyzer, VB, (from the Internet )
FFTforTimeData
- 数字信号处理用的快速傅里叶变化，可提供分段，复盖（Overlap)，时程图，频谱图。-digital signal processing using Fast Fourier changes, can provide sub-covering (Overlap) time- and frequency spectrum.