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Description: 本人做的GPS并行码捕获的算法.用的是1024点FFT,原始数据可以假如不同功率的噪声.-GPS parallel code acquisition algorithm. Using a 1024-point FFT. If the original data can be different noise power.
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Size: 21504 |
Author: 朱广清 |
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Description: GPS 捕获程序,采用FFT搜索算法,搜索1024个码相位.-GPS capture procedures, using FFT algorithm, search phase code 1024.
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Size: 121856 |
Author: Jerry |
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Description: A Software-Defined GPS And Galileo Receiver.
Springer 20006年新书，书是pdf格式和书中的源代码为matlab。-A Software-Defined GPS And Galileo Receiver.Springer 20006 new year, the book is a pdf format and the book
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Size: 2068480 |
Author: 王榕 |
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Description: FFT应用于GPS快捕方面的IEEE文章，对于基带处理方面有帮助-FFT applied to GPS fast catching aspects of IEEE articles, there is help for the baseband processor
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Size: 841728 |
Author: 刘旭东 |
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Description: GPS信号基带处理方面在IEEE文章
信号跟踪和捕获-GPS signal baseband signal in the IEEE article, track and capture
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Size: 254976 |
Author: 刘旭东 |
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Description: GPS信号基带处理方面在IEEE文章
信号跟踪和捕获-GPS signal baseband signal in the IEEE article, track and capture
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Size: 303104 |
Author: 刘旭东 |
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Description: A FFT-based partial matched filter (PMF)
acquisition threshold setting method for fast GPS acquisition is
presented. Normal distribution and numerical fitting technique
instead of real decision variable (DV) distribution are used in
derivation to approximate the threshold expression, and the
modification method for the threshold expression is also
presented. The threshold expression is based on the individual
FFT Doppler bin false alarm probability rather than the
convention whole detector false alarm probability. The
proposed threshold expression can be adjusted according to
the false alarm probability, the noncoherent accumulation
(NCA) length and the estimated noise variance. Furthermore
we discuss the implementation of zero-padding FFT with its
advantage and limitation. The performance is superior
compared to the reference method in terms of signal-to-noise
ratio (SNR) when detection and false alarm probabilities are
used as measurement criteria.
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Size: 280576 |
Author: zohreh |
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Description: Presently FFT usage in GPS receivers has been a
topic of extensive study and many improved FFT-based
acquisition methods with averaging correlation
technique also have emerged. Although averaging
arithmetic can reduce the instant processing points of
FFT/IFFT, their noise performance is not promising. In
this paper a novel compress-sampling algorithm for
FFT-base GPS signal acquisition method is proposed.
It not only diminishes the size of FFT/IFFT core but
also enhances the noise immunity of receiver with its
“redundancy” structure. Simulation results of Matlab
testify that the computational complexity of the novel
algorithm has been efficiently suppressed to only
0.93 over the 2D search method in time domain. At
the same time the lower amplitude threshold obtained
from the novel method gets a lower false alarm
probability comparing with the direct DFT algorithm
with no compression. The noise immunity is enhanced-Presently FFT usage in GPS receivers has been a
topic of extensive study and many improved FFT-based
acquisition methods with averaging correlation
technique also have emerged. Although averaging
arithmetic can reduce the instant processing points of
FFT/IFFT, their noise performance is not promising. In
this paper a novel compress-sampling algorithm for
FFT-base GPS signal acquisition method is proposed.
It not only diminishes the size of FFT/IFFT core but
also enhances the noise immunity of receiver with its
“redundancy” structure. Simulation results of Matlab
testify that the computational complexity of the novel
algorithm has been efficiently suppressed to only
0.93 over the 2D search method in time domain. At
the same time the lower amplitude threshold obtained
from the novel method gets a lower false alarm
probability comparing with the direct DFT algorithm
with no compression. The noise immunity is enhanced
Platform: |
Size: 254976 |
Author: zohreh |
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Description: Presently FFT usage in GPS receivers has been a
topic of extensive study and many improved FFT-based
acquisition methods with averaging correlation
technique also have emerged. Although averaging
arithmetic can reduce the instant processing points of
FFT/IFFT, their noise performance is not promising. In
this paper a novel compress-sampling algorithm for
FFT-base GPS signal acquisition method is proposed.
It not only diminishes the size of FFT/IFFT core but
also enhances the noise immunity of receiver with its
“redundancy” structure. Simulation results of Matlab
testify that the computational complexity of the novel
algorithm has been efficiently suppressed to only
0.93 over the 2D search method in time domain. At
the same time the lower amplitude threshold obtained
from the novel method gets a lower false alarm
probability comparing with the direct DFT algorithm
with no compression. The noise immunity is enhanced-Presently FFT usage in GPS receivers has been a
topic of extensive study and many improved FFT-based
acquisition methods with averaging correlation
technique also have emerged. Although averaging
arithmetic can reduce the instant processing points of
FFT/IFFT, their noise performance is not promising. In
this paper a novel compress-sampling algorithm for
FFT-base GPS signal acquisition method is proposed.
It not only diminishes the size of FFT/IFFT core but
also enhances the noise immunity of receiver with its
“redundancy” structure. Simulation results of Matlab
testify that the computational complexity of the novel
algorithm has been efficiently suppressed to only
0.93 over the 2D search method in time domain. At
the same time the lower amplitude threshold obtained
from the novel method gets a lower false alarm
probability comparing with the direct DFT algorithm
with no compression. The noise immunity is enhanced
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Size: 87040 |
Author: zohreh |
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Description: 用于将GPS传送的信号以一定的采样速率离散化，方便以后进行FFT运算-GPS signals used to transmit a certain discrete sampling rate, FFT operation to facilitate a later
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Size: 1024 |
Author: LJJ |
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Description: GPS C/A码捕获 用的是fft频域的搜索 有C/A码产生和C/A码数字化子程序，模拟卫星信号的捕获算法和过程，未考虑多普勒频移-GPS C/A code acquisition in frequency domain using the fft search with C/A code generation and C/A code number of subroutines, analog satellite signal acquisition method and process, without considering the Doppler shift
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Size: 357376 |
Author: 铁头 |
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Description: 用FFT做CA码捕获得程序，GPS接收机的伪码捕获程序-CA to do with the FFT procedure code was caught, GPS receiver code acquisition process
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Size: 3072 |
Author: 李文 |
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Description: 在分析基于FFT 算法的GPS 伪码的快速捕获新方法的基础上, 通过传统的时域二维串行码捕获方
法和基于FFT 算法的GPS 伪码的捕获新方法所需要的运算次数的比较, 在理论上论证了新方法伪码捕获速
度得到提高的正确性和可行性。采用System View 软件仿真实验验证了基于FFT 算法的GPS 伪码的快速
捕获新方法理论的正确性, 得出新码捕获方法较传统的码捕获方法得到捕获速度提高的结论, 为GPS 接收机适应高动态环境做了理论探讨。-FFT algorithm in the analysis is based on fast acquisition GPS PN code based on the new method, through the traditional two-dimensional time-domain code acquisition method and the serial FFT algorithm based on GPS pseudo-code the new method of capturing the number of operations needed to compare demonstrated a new method in theory, pseudo-code acquisition speed is improved accuracy and feasibility. Using System View software simulation results verify the FFT algorithm based fast acquisition GPS PN accuracy of new method to generate new code acquisition method than the traditional method of code acquisition speed to capture the conclusions obtained for the GPS receiver to adapt to high Theory of dynamic environment do.
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Size: 226304 |
Author: zhouyang |
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Description: 描述了GPS中频信号捕获算法中的快速傅里叶算法-Describes the GPS IF signal acquisition algorithm of Fast Fourier Transform Algorithm
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Size: 841728 |
Author: 李则昂 |
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Description: GPS软件接收机以及fft程序实现 可以实现，包括基本文档-The software GPS receiver and FFT program
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Size: 47430656 |
Author: 田聪聪 |
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Description: GPS并行码捕获算法MATLAB源代码，含有1024点FFT噪声的计算。-GPS parallel code acqure algorithm matlab source code, including 1024 points FFT noise calculation.
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Size: 8192 |
Author: |
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Description: GPS信号的捕获算法仿真，包括串行捕获算法仿真（平方检波，CFAR，单次判决），并行码相位捕获算法仿真（平方检波，CFAR，单次判决），以及FFT并行码相位捕获算法仿真（平方检波，CFAR， TONG判决）。-GPS signal acquisition algorithm simulation, including the capture of serial algorithm simulation (square detection, CFAR, a single sentence), parallel code phase acquisition algorithm simulation (square detection, CFAR, a single sentence), as well as the parallel FFT algorithm simulation code phase acquisition ( square detection, CFAR, TONG judgment).
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Size: 460800 |
Author: 王大壮 |
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Description: GPS 捕获跟踪程序，用的是PMF-FFT捕获方法。门限设置为0-GPS capture and tracking procedures, using the PMF-FFT capture method. Threshold set to 0
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Size: 1302528 |
Author: 王木乃 |
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Description: 一些PMF-FFT GPS信号捕获的有关论文-Some PMF-FFT signal acquisition related papers
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Size: 5015552 |
Author: 轻松 |
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Description: This is the second energy entropy matlab code, Based on wavelet transform digital watermarking algorithm matlab code, Dual-line interpolation FFT harmonic analysis kaiser windows.
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Size: 9216 |
Author: guilenpingtai
|
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