Bab6

毕业设计。用MATLAB实现BPSK编程。(Graduation project. Using MATLAB for BPSK.)

Spread spectrum merupakan sistem dimana sinyal yang dikirimkan memiliki bandwidth yang jauh lebih lebar daripada bandwidth sinyal informasinya sendiri. Proses pelebaran bandwidth sinyal informasi ini dilakukan pada sisi pengirim dan disebut spreading. Sebaliknya, proses penyempitan kembali bandwidth sinyal informasi dilakukan di sisi penerima, dan disebut despreading. Pada gambar 1 berikut menunjukkan proses yang terjadi pada sistem spread spectrum.

Assistive technology for people made code in matlab

基于yule_walker方程的空间谱估计算法，对学习空间谱估计与天线阵列的朋友会有帮助：）(yule_walker equation based on the spatial spectrum estimation algorithm right learning space spectrum estimation antenna array and friends will be helpful :))

System,烈焰行动源代码文件,SystemSystem(System, flames action source code files)

利用Matlab内建的快速傅氏变换函数可以方便地在波数域计算重磁异常导数。介绍了基于Matlab语言的波数域求导的算法，给出了程序源代码，讨论了一些有助于提高计算精度的编程技巧。通过模型试验和数据分析， 发现在计算垂向导数时波数域求导算法的精度比傅氏级数的精度有明显改善；而水平导数的计算，2种方法的精度相当。在某区钾盐勘探中，用该方法处理高精度重力剖面数据，取得了较好效果。(It is convenient to calculate derivative in wave number space using the inbuih F胛function in Matlab．This paper describes a matlab algorithm for derivative calculation of 1 D gravity and magnetic anomaly in wave number space，gives code of program and deals with some programming skills for precision improvement．Throngh model test and data analysis，it is found that the precision of the F盯method is much higher than that of the Fourier Series method in vertical derivative calculation．In horizontal derivative calculation， however，the precisions of the two methods ale almost the same．During kainite exploration in a certain basin，satisfactory result Wag obtained in the processing of gravity profile data using this method．)

数据同化，集合卡尔曼滤波算法全部程序,包括主程序，计算增益矩阵K(Ensemble kalman filter for data assimilation)

This report is written in fall semester of 2004 and spring semester of 2005 at Aalborg University, at the institute for Electronic Systems, department for process control under the study council for Electronic and Informations Technology.

这是用matlab实现的多站定位系统性能仿真的源程序，希望对研究定位的人有所帮助！资源共享，也希望有关 于无源定位、多普勒信息提取方面代码的人共享一下，一起进步！(This is achieved using matlab multi-station positioning system performance simulation of the source, I hope the study will help position the person! The sharing of resources, but also on the passive positioning, Doppler information extraction area to share some code with the progress!)

a novel distributed time synchronization scheme for wireless sensor networks written in matlab