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一种数字中频 GPS 信号生成方法 GPS generation
研究了一种数字中频 GPS 信号生成方法。给出了数字中频信号数学模型,模型考虑了各种因素对信号的影响。通过导航电文分析,提出信号传播时延、多普勒频移以及信号入射方向的估计方法。给出了中频信号产生的流程,对其中时延的设置,信号的上变频、信号幅度设置以及方向信息的导入进行了阐述。对所生成的信号模型进行了仿真分析,给出了信号产生各个阶段的频谱,对所生成的信号进行了相关捕获。仿真结果表明频谱特征符合理论分析,能够被捕获并找出信号时延从而实现定位。证明该信号模型能作为信号源应用于 GPS接收机研制中。(】The paper discusses a digital IF GPS signal generation method, gives the mathematic
model of digital IF signal. This mathematic model takes into account the influence of various
factors. Based on analysis of the navigation data, the method to estimate signal propagation time,
Doppler frequency shift and the coming angle of signal is proposed. The flow to generate IF signal
is given, in which the setting of time delay, the up-frequency conversion, the setting of signal
magnitude and the introduction of direction information are expounded. The signal generation model
is simulated and analyzed, the spectrum of signal in each stage given, and the correlation capture
of the generated signal also done. Simulation indicates that the spectrum is in accord with
theoretical analysis the signal could be captured, thus find the time delay, accomplish the
orientation. The signal model is proved applicable in the research and development of GPS receiver.)
- 2013-05-15 11:44:16下载
- 积分:1
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AffineTrnasformation
仿射变换,2D图形编程,图形图象,有matlab操作界面,可实现任意二维变换(Affine transformation, 2D graphics programming, graphics, images, has matlab interface can realize any two-dimensional transform)
- 2008-03-27 11:52:27下载
- 积分:1
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erjie_exponential convergence
二阶多智能体系统一致性算法仿真,其中包含有领导者和无领导者(Simulation of consistency algorithm for second-order multi-agent system)
- 2019-03-29 21:26:51下载
- 积分:1
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ECGsignaldenoisingbyEEMD-master
说明: 心电信号处理Cardiac-frecuency-and-ECG-signal-denoising-by-EEMD-master(ECG Signal Processing)
- 2021-04-01 17:39:07下载
- 积分:1
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power_acdrive
使用Matlab仿真软件进行仿真的异步电机矢量控制系统(Simulation using the Matlab simulation software asynchronous motor vector control system)
- 2011-11-03 19:09:51下载
- 积分:1
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BOC
MATLAB仿真,包括CBOC信号产生以及通过锁相环实现信号跟踪,可直接运行!
接近工程实现思路,可用于fpga实现前功能仿真。((MATLAB simulation, including CBOC signal generation, and through the phase-locked loop to achieve signal tracking, can be directly run.))
- 2017-11-13 19:05:43下载
- 积分:1
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OK_verygood_PMSG_svpwm2
永磁发电机的SVPMW的控制 能够很好的整流 参数也都已经调试好了 (PMGW perfect control with svpwm method)
- 2011-07-05 20:33:36下载
- 积分:1
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4lscma
4种最小二乘恒模算法,可改变参数,观看bpsk,qpsk,16qam误差曲线图(Four kinds of least-squares constant modulus algorithm, can change the parameters, see bpsk, qpsk, 16qam error curve)
- 2011-09-12 12:53:25下载
- 积分:1
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matlab程序设计实例解析
本文通过对 MATLAB 程序设计中的若干典型问题做简要的分析和总结,并
在此基础上着重讨论了有关算法设计、程序的调试与测试、算法与程序的优化以
及循环控制等方面的问题.还通过对一些程序实例做具体解析,来方便读者进行
编程训练并掌握一些有关 MATLAB 程序设计方面的基本概念、基本方法以及某些
问题的处理技巧等.此外,在文章的最后还给出了几个常用数学方法的算法程序,
供读者参考使用.希望能对初学者进行 MATLAB 编程训练提供一些可供参考的材
料,并起到一定的指导和激励作用,进而为 MATLAB 编程入门打下好的基础.(This article briefly analyzes and summarizes some typical problems in MATLAB program design.
Based on this, we discussed the design of the algorithm, the debugging and testing of the program, and the optimization of algorithms and programs.
Problems such as loop control, etc. Also through the specific analysis of some program examples to facilitate readers
Programming training and master some basic concepts, basic methods and some related to MATLAB programming
Problem handling techniques, etc. In addition, at the end of the article, several algorithm programs for common mathematical methods are given.
For readers to use. Hope to provide beginners with MATLAB programming training to provide some reference material
Materials, and play a certain guidance and incentives, and then lay a good foundation for MATLAB programming entry.)
- 2018-03-22 15:06:22下载
- 积分:1
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adaptecdemo
mathwork公司提供的用于设计生成dsp滤波器代码的算法(dsp filter code generation by mathwork)
- 2015-09-01 11:06:55下载
- 积分:1