Use of difference channel information for detection in monopulse radars

The problem of target detection and acquisition by a monopulse tracking radar is considered. This problem is conventionally addressed using only information in the sum beam. The additional information available in the difference channels may be utilised to give improved performance. Two possible realisations of this concept are presented and analysed in some detail, namely linear combinations of the sum and difference channels, and detection based on the complex indicated angle. Other possibilities are also mentioned as possible areas for future work