The processing of HF skywave radar signals

This paper presents an overview of a significant and computationally demanding application of signal processing, viz. over-the-horizon radar (OTHR). The Jindalee Operational Radar Network is an integrated network of OTHRs which depend heavily for their performance, in both air and surface mode, on signal processing. It outlines the characteristics of OTHR data that need to be recognised in the design of its processing algorithms, and then describes the chosen signal processing techniques and the implementation architecture. Comment is made, where underlying assumptions in the theory are not valid and a view is given on where additional development in OTHR signal processing is required