JED - March 2018 - 42

EW 101

Next Generation EW - Part 5

Next-Generation Systems
By Dave Adamy

T

The Journal of Electronic Defense | March 2018

42

his month, we will begin our
discussion about the range
of new weapon systems that
have been developed by the
West's most sophisticated
potential adversaries. It
is important to consider that western
military forces have been involved in
conflicts with less sophisticated enemies who are equipped with earliergeneration weapon systems, some of
which have been upgraded. Therefore,
these legacy systems must still be considered relevant. However, the advent of
new threat systems drive the need for
additional EW capabilities to effectively
counter them.
The new-generation weapons in this
series will include:
* Long-range surface-to-air systems
(SAMs)
* Shorter-range SAMs
* Radar-directed anti-aircraft guns (upgrades to the ZSU-23)
* Antiship missiles
* Infrared missiles
As in earlier columns in this series,
all of the information about missiles
and radars comes from open-literature
sources and, except for sanity checking such information against the laws of
physics, no assertion as to the accuracy
or inaccuracy of the given specifications
is made.

THE EVOLUTION OF SAM SYSTEMS
For years, we have talked about "double-digit SAMS." Since the NATO designations at the time of these discussions
ended at SA-9, the new generation designations start with SA-10 (i.e., double
digit).

The SA-2 Guideline SAM system
allows effective attack against diswith the Fan Song tracking radar and
tant stand-off jammers.
the SA-5 Gammon SAM system with
* Side-lobe suppression and blanking
the Square Pair radar, both of which
also impact stand-off jamming bewere originally developed in the 1950s,
cause such jammers must transmit
were the Soviet Union's primary longinto the side-lobes of targeted radars.
range anti-aircraft threats for the
* Pulse Doppler radars discriminate
early and middle decades of the Cold
against non-coherent jamming and
War. Then, beginning in the 1970s,
chaff and allow the radar to overcome
the S-300 family of weapon systems
range-gate pull-off and range-gatewas developed to increase the Soviet
pull-in jamming.
Union's long-range air defense capabil* Pulse compression radars not only proity. Generally, the various radars and
vide better range discrimination, but
missiles in the S-300 family have sigalso reduce the effective J/S created
nificantly longer ranges than the SAby jammers.
2, and feature significantly improved
Each of these features of the S-300
radar performance over both legacy
and later weapon families will be anaSAM systems. All of the new systems
lyzed in future columns in this series
have significant electronic protection
with several examples given.
(EP) features, including home-on-jam
The S-300 family of systems are
capability, side lobe suppression and
designed to counter many of the perblanking, and several features assoformance advantages that fourthciated with pulse Doppler and pulse
generation fighters (F-15, F-16, F-18,
compression radars.
JAS-39, Typhoon, and Rafale) and
The double-digit SAMs have affected
stand-off jammers provided against
EW operations in several
ways:
* The longer lethal range
SA-2
SA-5
dictates that stand-off
jamming must be performed from signifiS-300
cantly longer ranges.
Since the jamming to
signal ratio (J/S) is
SA-10
SA-12
inversely proportional
to the square of range,
jamming effectiveness
is severely reduced.
SA-20
SA-23
* Home-on-jam makes
onboard self-protection jamming practically suicidal and
Fig. 1: The SA-2 and SA-5 were succeeded by the S-300 family.

Figure 1 The S-300 missile system is a family of long range missiles and radars
that functionally replace the SA-2 and SA-5 legacy long range missiles and their
associated radars.



JED - March 2018

Table of Contents for the Digital Edition of JED - March 2018

The View From Here
Conferences Calendar
Courses Calendar
From the President
The Monitor - DOD Rolls Out $686 Billion FY2019 Budget
World Report - Russia Developing More Sophisticated Approach to EW
The Domain of the Tube – Millimeter Wave and Beyond
A Wild Weasel EWO Kills a SAM – from an AC-130E Gunship
Resilient and Ready: NATO JEWCS in Transition
EW 101
2018 AOC Industry & Institute/ University Member Guide
AOC News
Index of Advertisers
JED Quick Look
JED - March 2018 - intro
JED - March 2018 - cover1
JED - March 2018 - cover2
JED - March 2018 - 3
JED - March 2018 - 4
JED - March 2018 - 5
JED - March 2018 - The View From Here
JED - March 2018 - 7
JED - March 2018 - Conferences Calendar
JED - March 2018 - 9
JED - March 2018 - Courses Calendar
JED - March 2018 - 11
JED - March 2018 - From the President
JED - March 2018 - 13
JED - March 2018 - 14
JED - March 2018 - The Monitor - DOD Rolls Out $686 Billion FY2019 Budget
JED - March 2018 - 16
JED - March 2018 - 17
JED - March 2018 - 18
JED - March 2018 - 19
JED - March 2018 - 20
JED - March 2018 - 21
JED - March 2018 - World Report - Russia Developing More Sophisticated Approach to EW
JED - March 2018 - insert1
JED - March 2018 - insert2
JED - March 2018 - 23
JED - March 2018 - The Domain of the Tube – Millimeter Wave and Beyond
JED - March 2018 - 25
JED - March 2018 - 26
JED - March 2018 - A Wild Weasel EWO Kills a SAM – from an AC-130E Gunship
JED - March 2018 - 28
JED - March 2018 - 29
JED - March 2018 - 30
JED - March 2018 - 31
JED - March 2018 - Resilient and Ready: NATO JEWCS in Transition
JED - March 2018 - 33
JED - March 2018 - 34
JED - March 2018 - 35
JED - March 2018 - 36
JED - March 2018 - 37
JED - March 2018 - 38
JED - March 2018 - 39
JED - March 2018 - 40
JED - March 2018 - 41
JED - March 2018 - EW 101
JED - March 2018 - 43
JED - March 2018 - 44
JED - March 2018 - 45
JED - March 2018 - 2018 AOC Industry & Institute/ University Member Guide
JED - March 2018 - 47
JED - March 2018 - 48
JED - March 2018 - 49
JED - March 2018 - 50
JED - March 2018 - 51
JED - March 2018 - 52
JED - March 2018 - 53
JED - March 2018 - 54
JED - March 2018 - 55
JED - March 2018 - 56
JED - March 2018 - 57
JED - March 2018 - 58
JED - March 2018 - 59
JED - March 2018 - 60
JED - March 2018 - 61
JED - March 2018 - 62
JED - March 2018 - 63
JED - March 2018 - 64
JED - March 2018 - 65
JED - March 2018 - 66
JED - March 2018 - 67
JED - March 2018 - 68
JED - March 2018 - 69
JED - March 2018 - 70
JED - March 2018 - AOC News
JED - March 2018 - 72
JED - March 2018 - Index of Advertisers
JED - March 2018 - JED Quick Look
JED - March 2018 - cover3
JED - March 2018 - cover4
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