Solution of the problem “detection - range measurement” for low-mobility
objects by methods of active correlation
S. V. Shostak 1, E. N. Baklanov 2, P. A. Starodubtcev 3,
A. P. Shevchenko 3
1 Far
Eastern Federal University
2 Far
Eastern State Technical Fisheries University
3 Pacific
Higher Naval School S.O. Makarov
The paper is received on February 28, 2015
Abstract: In this article we consider the possibility of providing the
necessary resolution in range of a sonar due to encoding pulses through broadband
modulation, as opposed to a change in their duration. This provides more efficient use of a transmitter power and
a high noise immunity. We propose a method
of active correlation processing of echo signals received from multiple targets
and
overlapping in time, the essence of which is to convert the temporary shift of
the signal into the frequency signal and
to use the reference signal, which depends on the parameters of the pulse and
the band of the measured range.
Key words:
conar, range resolution, correlation processing of signal, linear
frequency modulation, reference signal.