Frequency diverse array radar receiver architectures

Abstract

Frequency diverse array radar utilizes the principle of superposition to cohere energy, in a novel fashion, to achieve range dependent spatial patterns. While the theory for transmit spatial patterns has been developed, the need for efficient receiver design architectures persists. This paper investigates three basic receive chain architectures for their spatial patterns and design complexity in a benign environment with a single point target. Additionally, we provide a closed-form expression of a receive pattern for a full-band, coherent frequency diverse array architecture.