paper5

Abstract：Thearticleismainlydevotedtothetheoryaswellastheachievementonthemodulationanddemodulationofπ/ 4-DQPSKsysteminthesoftwareSystemView.Besides，thearticleanalysesthedynamicandstatic behaviorsoftheπ/4-DQPSKsystemaswellastheperformanceagainstnoiseundertheconditionofGaussnoise channel.Thecomparisonismadeonthespectrumandanti-noiseperformancebetweenπ/4-DQPSKandQPSK underthethesamechannel.Theresultofsimulationshowsthatthespectrumexpandingofπ/4-DQPSKissuperiortothatoftheQPSKsystem. Keywords：π/4-DQPSK；SystemView；computeraideddesign（CAD）；Matlab(Abstract: Thearticleismainlydevotedtothetheoryaswellastheachievementonthemodulationanddemodulationof pi/4-DQPSKsysteminthesoftwareSystemView.Besides, thearticleanalysesthedynamicandstatic behaviorsofthe pi /4-DQPSKsystemaswellastheperformanceagainstnoiseundertheconditionofGaussnoise channel.Thecomparisonismadeonthespectrumandanti-noiseperformancebetween pi /4-DQPSKandQPSK underthethesamechannel.Theresultofsimulationshowsthatthespectrumexpandingof pi /4-DQPSKissuperiortothatoftheQPSKsystem. Keywords: Pi /4-DQPSK; SystemView; Computeraideddesign (CAD); Matlab)

介绍了2PSK/4PSK仿真情况，能够显示出波形(Introduction of 2PSK /4PSK simulation, can display the waveform)

Matlab/Simulink simulation module for WCDMA Spread and Modulation.

说明：  处理蠓虫分类的另一种网络方法，方法仅供参考(Another network approach to classification midges)

用双线性法设计巴特沃斯高通数字滤波器 基于汉宁窗的FIR数字高通滤波器设计(Method with bilinear Butterworth high-pass digital filter design based on Hanning window of FIR digital high-pass filter design)

为充分发挥MATLAB和JAVA的优势，提出基于两者的混合编程技术。混合编程的关键是数据传输问题，在此采用接口技术。研究了MATLAB和JAVA在本地环境和网络环境下的混合编程方法，通过多个实例说明两者混合编程的过程和步骤(To bring into full play the advantages of MATLAB and JAVA, both based on a mixture of programming. Mixed programming, the key is the issue of data transmission in the use of interface technology. MATLAB and JAVA studied in the local environment and network environment of mixed programming, through a number of examples of mixing the two programming steps of the process and)

在地震反演中需要进行流体替换的研究，流体替换中用到了gassmann方程 (Seismic inversion studies need to replace the fluid, fluid replacement used gussmannn equation)

matlab经典教程， 配有大量的实例 方便平时查阅和学习 并且以word形式按章节分开(Matlab classic handbook, correction examples it convenient to access and learning and word forms according to a separate)

Simulates BPSK Modulator/Demodulator. Simulink Platform - Matlab 7.0

求一个信号的频谱分布，并求某一帧的频谱图。(Seeking a signal of the spectrum distribution, and the frequency spectrum diagram of the requirements of a certain frame.)