A Multistatic Doppler Radar System with Application to Aeroecology

摘要

This paper focuses on a distributed multistatic Doppler radar system for use in aeroecology applications. The system is composed of five spatially separated receiving stations and three transmitting stations operating in offset frequency channels in S-band. The spatial and frequency diversity in the system allows for a moving target's position within the coverage area to be extracted via multilateration from its Doppler signature alone. S-band operation is chosen to allow for foliage penetration in wooded and forested areas. Simulated results show achievable position uncertainty of less than 1 m for very small cross-section targets (≤-36d Bm~2) at bistatic ranges up to 300 m. System theory of operation, design considerations and performance metrics are presented using simulation as well as initial system measurements from prototype hardware.