Analysis of modulation characteristics on return signals from aircraft rotating blades in the conventional radar

doi:10.7523/j.issn.2095-6134.2013.06.018

Abstract

Abstract:

Aiming at the problem that radar echoes from some airborne targets contain modulation sections and airframe sections, we derive the parameter models for the spectrum characteristics of the modulation section from the rotating parts and its echo amplitude on basis of analysis of the echo mathematical model of the rotating parts, indicate the application conditions of some previous models in the literature, and analyze the observation conditions of the modulation effect as well as the influence on the modulation characteristics induced by partial blades sheltering. Simulation is performed in different parameter conditions, and the results show that the above-mentioned theoretical analysis and the modulation characteristic parameter models are reliable and effective.

Key words: conventional radar, rotating parts, modulation echo, parameter modeling, observation conditions

CLC Number:

TN957.51

LI Qiu-Sheng. Analysis of modulation characteristics on return signals from aircraft rotating blades in the conventional radar[J]. , 2013, 30(6): 829-838.

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