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Research on Improving the Direction Finding Accuracy of Radio in Improve the Radio for the Accuracy of Research

Author: SunGuangDong
Tutor: WangXiuFang;ZhangXiaoMian
School: Northeast University of Petroleum
Course: Control Engineering
Keywords: Interferometer The length of the baseline Remainder Theorem MUSIC algorithm Spatial spectrum estimation
CLC: TN98
Type: Master's thesis
Year: 2011
Downloads: 65
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Abstract


With the continuous development of radio technology , radio extensive application of new business , especially in the large urban complex geographical environment , radio direction finding accuracy needs further improved. This article analyzes the institutional characteristics of the various measurements to its range of applications compared environmental error , the native error exists in the radio direction finding , radio propagation measurement error made ??a more detailed analysis , summarizes how to avoid these the error of the method . Traditional interferometer phase ambiguity of the improved method , according to the Chinese remainder theorem to solve the phase ambiguity problem , through the length of the baseline match . Using Matlab simulation on the traditional interferometer and improved interferometer to achieve , by comparing the known improved interferometer principle in finding accuracy has been greatly improved . MUSIC algorithm in multipath environment because high correlation signal failure , classic MUSIC algorithm based on spatial spectrum estimation , simulation and performance analysis of direction of arrival (DOA) estimation algorithm improved the MUSIC algorithm combined with spatial smoothing technique applicable to the relevant source DOA estimation , and improved algorithms for simulation and performance analysis , reducing the error introduced by finding algorithm . Finally , by an external field of German R / S the company EBD195 finding equipment to measurement accuracy test test , get the test data analysis processing error curve is drawn using the Fourier series for further analysis of the error . Analyze the data according to the error correction device parameters , field test again , to good effect .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio , telecommunications, measurement techniques and instruments
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