Analysis of micro-Doppler signals using linear FM basis decomposition

Pawan Setlur; Moeness Amin; Fauzia Ahmad

doi:10.1117/12.669003

8 May 2006 Analysis of micro-Doppler signals using linear FM basis decomposition

Pawan Setlur, Moeness Amin, Fauzia Ahmad

Proceedings Volume 6210, Radar Sensor Technology X; 62100M (2006) https://doi.org/10.1117/12.669003
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

Micro-Doppler is generated from targets with simple harmonic motions, characterized by a sinusoidal instantaneous frequency in the time-frequency plane. This type of micro-Doppler arises from vibrating or rotating targets, which are commonly present in indoor settings. It is shown that the use of basis functions matched to the sinusoidal micro-Doppler signatures proves effective in identifying the micro-Doppler components in indoor imaging. These functions are optimum in the maximum likelihood (ML) sense. Asymptotic properties of the proposed linear decomposition are derived. The basis decomposition provides enhanced phase and frequency resolutions and is robust to noise. It is strongly dependent on the Bessel function (of the first kind) characteristics. Simulation results are presented to demonstrate the effect of non-orthogonality of the basis functions and the respective frequency and phase resolution properties of the decomposition.

Citation Download Citation

Pawan Setlur, Moeness Amin, and Fauzia Ahmad "Analysis of micro-Doppler signals using linear FM basis decomposition", Proc. SPIE 6210, Radar Sensor Technology X, 62100M (8 May 2006); https://doi.org/10.1117/12.669003

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available