Three methods including mixed-ground,adding EMI filter,adding isolation module,are used to reduce the intensity of corewired coupling EFT interference,and the system anti-interference capability is improved.

Aimed at the adaptive interference cancellation system for improving the transmitter-receiver isolation of the jammer, a fast LMS adaptive algorithm in frequency domain is realized by using fast FFT technology, the algorithm is a replacement of LMS algorithm in time domain.

Transmitter-Receiver isolation is a key technology in a lot of jamming systems.

Practice proves that we can get good effect by means of adding the lightning shielding module of disconnecting transformer to power line,adding filter-lightning-shielding module to equipment, shielding signal cable,power line,etc.

A high speed atmospheric laser communication transceiver module is designed and tested in this paper.

In this paper, the authors introduced VCSELs and the optical transceiver modules, and discussed the framework design of GBIC module and its key technique.