4
FEATURES
Radar uses FMCW (Frequency Modulated Con-
tinuous Wave) radar technology. The main dis
-
tinguishing feature of broadband radar unlike
traditional pulsed radars is solid-state element
base instead of the magnetron, which signifi
-
cantly increases the MTBF without additional
maintenance. Thus the radar image is the same
as that of the magnetron radar.
Timing diagram of FMCW signal
Radar transmits a signal of increasing fre-
quency. Measuring the difference between
the current transmitted frequency and echoed
frequency allows to calculate the time of the
returned echoes and, as a result, the distance
to a target.
MRS-1000
TECHNICAL DESCRIPTION
Page
7
of
15
SYSTEM OVERVIEW
ABOUT FREQUENCY MODULATED CONTINUOUS WAVE (FMCW)
MRS-1000 Radar uses FMCW (Frequency Modulated Continuous Wave) radar technology. The
main distinguishing feature of broadband radar unlike traditional pulsed radars is solid-state
element base instead of the magnetron, which significantly increases the MTBF without
additional maintenance. Thus the radar image is the same as that of the magnetron radar.
Radar transmits a signal of increasing frequency. Measuring the difference between the current
transmitted frequency and echoed frequency allows to calculate the time of the returned echoes
and, as a result, the distance to a target.
Fig. 1 Timing diagram of FMCW signal
Frequency
Time
Transmitted signal
Received signal
In each moment frequency of transmitted signal is
higher than frequency of received signal
Reflection time
2
