"JOURNAL OF RADIO ELECTRONICS"  N 2, 2015

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FREQUENCY DETERMINATION AMBIGUITY IN MATRIX RECEIVER

A. S. Podstrigaev 1, V. P. Likhachev 2
1
Bryansk State Technical University
2
MSSC MAF "Military air academy n. a. prof. N. E. Jukovsky and Yu. A. Gagarin"

 

The paper is received on February 20, 2015

 

Abstract. The causes of frequency determination ambiguity in matrix receiver are considered: a presence of channel filter parasitic pass bands, a small slope of amplitude-frequency characteristic of channel filters, a receiving of time matched signals with different frequencies. The analysis of efficiency of possible frequency ambiguity reduction ways is performed. The way of frequency ambiguity reduction in receiving of time matched signals with different frequencies is proposed.

Key words: ambiguity, matrix receiver, parasitic pass band, channels joint, amplitude-frequency characteristic slope, binary detector, selectivity, rough frequency determination, frequency determination ambiguity, even channels.