Title :
Reduction of cosite interference for digital FM frequency hopping radios
Author :
Chan, Norbert ; Peterson, Lew
Author_Institution :
Comput. Devices Canada Ltd., Calgary, Alta., Canada
Abstract :
Digital FM frequency hopping radios closely located together on a platform or on nearby platforms may cause interference to each other. In this paper, the interference effects of cosited radios will be discussed. These effects include transmitter wideband noise, transmitter intermodulation and receiver intermodulation. The performance of the radio will be considered taking into account the interference from intermodulation products and multiple users. Potential solutions to reduce the interference from cosited radios will also be discussed. These solutions include the use of filters, orthogonal hopping, and coupling all cosited radios through a highly linear amplifier. Ways to achieve higher isolation between radios will also be discussed
Keywords :
Chebyshev filters; digital radio; frequency hop communication; frequency modulation; frequency shift keying; interference suppression; intermodulation distortion; military communication; radio receivers; radio transmitters; cosite interference reduction; coupling; digital FM frequency hopping radios; filters; highly linear amplifier; intermodulation products; isolation; multiple users; orthogonal hopping; performance; receiver intermodulation; transmitter intermodulation; transmitter wideband noise; Frequency; Noise reduction; Phase noise; Power harmonic filters; Radio transmitters; Radiofrequency amplifiers; Radiofrequency interference; Receivers; Signal to noise ratio; Spread spectrum communication;
Conference_Titel :
Military Communications Conference, 1996. MILCOM '96, Conference Proceedings, IEEE
Conference_Location :
McLean, VA
Print_ISBN :
0-7803-3682-8
DOI :
10.1109/MILCOM.1996.571439
