Pieterse, Frans-PaulDu Plessis, Warren Paul2023-03-152023-03-152022-10Pieterse, F.P. & Du Plessis, W.P. 2022, 'Implementation and testing of a retrodirective cross-eye jammer', IEEE Transactions on Aerospace and Electronic Systems, vol. 58, no. 5, pp. 4486 - 44494, doi : 10.1109/TAES.2022.3164017.1557-9603 (online)0018-9251 (print)10.1109/TAES.2022.3164017https://repository.up.ac.za/handle/2263/90114One of the few electronic attack techniques that can deceive radars in angle is cross-eye jamming, which mimics the naturally-occurring phenomenon glint. The extreme tolerance requirements of cross-eye jamming mean that a retrodirective implementation is required, but published measurements of cross-eye jamming either ignore the retrodirective implementation or only simulate it. The implementation of a retrodirective cross-eye jammer and its testing against a monopulse radar are described. A procedure for calibrating the jammer is outlined and is shown to be effective by achieving large angular errors. The measured results agree well with the extended analysis of cross-eye jamming and confirm that the implemented jammer is retrodirective. Specifically, the ability of a cross-eye jammer to generate an indicated angle that never becomes zero, thereby potentially breaking a tracking lock, is confirmed.en© 2022 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.Angular deceptionRadar countermeasuresMonopulseCross-eye jammingElectronic attackElectronic warfareAntenna measurementsPhase measurementSea measurementsRadar measurementsRadar antennasJammingPostprint Article