A Programmable,Multimode Operational 3U-VPX Based Digital Transceiver & Processing Module For CIT-MKXIIA IFF

This paper relates to the realization of 3U-VPX based programmable Digital Transceiver to support different modes (1, 2, 3, A, B, C, D, S and Mode5) and configurations of Identification of Friend and Foe (IFF) systems. L-Band signals are directly digitized and generated using high speed serializer (JESD204B) based RF-DAC and RF-ADC. Minimal and generic hardware with programmability of critical functions results in realizing a compact transceiver module which can be used in variants of IFF i.e. Interrogator, Transponder and CIT (Combined Interrogator and Transponder). This paper also discusses about the timing synchronization of ADC, DAC and FPGA with inbuilt processor using digitally programmable delays among clock sources. Module performs the role of signal processing and data processing as well for different modes of operation.