关键词: MUSIC算法, 射频特征, 测向性能

Abstract:

This paper analyzes the basic principle of the MUSIC algorithm,and according to the three characteristics of the RF radiation source of the frequency,the duration of signal and the signal to noise ratio,their influence on the properties of MUSIC algorithm is analyzed through theoretical derivation,by influencing the wavelength,the frequency then influences the estimation precision of direction finding results,which even produces false spectral peak.It is verified by simulation that signal duration and Signal-to-Noise Ratio within a certain range is proportional to the direction finding estimation precision with which it is simulated.

Key words: MUSIC algorithm;RF characteristics;properties of direction finder