Compact Signal
Measurement
System (CSMS)
An affordable, compact signal
measurement solution
T
he Signal Measurement
System (SMS) captures,
records and analyzes hours
of threat and EA/ECM data during
an EW scenario engagement and
provides real-time RF measurement
and analysis of threat emitters
and corresponding SUT Jammer
responses for hardware-in-the-loop,
installed system, and open-air range
applications. SMS has been deployed
in both a direct RF injection laboratory
environment and a free space
radiation environment (i.e., anechoic
chamber, open air test range).
CSMS takes the powerful SMS
software and replaces the 2-bay
equipment rack and operator
workstation with a realtime
spectrum analyzer (RSA) and
a laptop computer. The RSA is
commercially available off-the-shelf
(COTS) equipment and is capable of
recording numerous data captures.
It sends measured I/Q data to
the laptop computer for storage.
The laptop computer includes
the SMS software which can then
be used to analyze the recorded
data and create custom reports.
CSMS software allows the User
to easily measure precise signal
characteristics that are difficult
to collect with standalone COTS
measurement equipment.
The CSMS provides the capability
to fully monitor the RF environment
and validate results, assuring the
war fighter’s optimal chances of
surviving the mission. SMS also
enhances warfighter survivability
by providing post-test analysis
of combat training range EW
engagements between the aircrew
and simulated threat.
• Validates the test environment by
verifying threat simulator signals
and SUT (radar and/or ECM)
response in real time and allows
correlation of EA/ECM with threat
activity
• Monitors test progress to provide
indication of test correlation,
failures, or anomalies
• Emitter parameter analysis (RF,
PRI, PW, Scan, etc.)
• Provides post-test analysis of the
threat signal and correlated SUT
Jammer response with scripted or
manual parametric measurement
to allow EA/ECM technique
validation
• Operates in stand-alone mode or
can be integrated with EW and
Communications stimulators to
enable shared use of databases
• Versatility of application, readily
configured for laboratory,
anechoic chamber, and open air
range operation adds value by
meeting test/evaluation needs
throughout an EW program life
cycle
• Real-time and post-test analysis
tools optimize the use of costly
chamber and range time
• Re-programmability allows
adaptation for new requirements
while performing a test
• User configurable EA/ECM
technique analysis definitions
• Non-invasive system application
permits dynamic, high-fidelity
measurement, and analysis
without affecting test results
• Selective programming enables
user to collect & analyze specific
radars and find specific events or
emitters
• Integrated and automated
features such as scripted
operation reduce the need for
operator interaction and oversight
• Detailed report generation
• Intuitive and robust software
applications along with COTS
hardware offers the advantages of
an Non-Development Item (NDI)
solution
• When combined with a CEESIM,
• Coordinated RGPO (CRGPO)
• Multiple Doppler
• Noise (Doppler, Range Gated, CW,
• False Targets (Multiplexed and
provides a complete end-to-end
test capability for EA/ECM jammer
systems. It verifies emitters
from the threat simulator and
correlates/verifies the EA/ECM
responses from the SUT
ECM Measured Techniques
• Range Gate Pull Off (RGPO)
• Swept RF
• Velocity Gate Pull Off (VGPO)
• Swept Square Wave
Coordinated)
Spot, Barrage, Swept, Cover Pulse)
Measured Parameters
Parameter
Measurement Range
Measurement Accuracy
Measurement Resolution
Frequency
20 MHz to 20 GHz
150 Hz RMS, coherent signals
±5 kHz (single pulse)
±300 Hz (average, 100 pulses)
10 Hz
Bandwidth
0 to 500 MHz
±10%, ±1 kHz minimum
300 Hz RMS, coherent signals
1% of span
Pulse Width
100 ns to 65 ms
±20 ns
5 ns
PRI
500 ns to CW
1 ns RMS (250 pulses)
5 ns
Amplitude
Dynamic Range
2.5 dB absolute, 1.0 dB relative
0.1 dB
TOA
Data Collection
50 ns
5 ns
SMS Features and Characteristics
SUT and Threat Simulator Input
Frequency Ranges
• 20 MHz to 20 GHz (upgrade to
extend range to 40 GHz)
Instantaneous Bandwidth
• 10 MHz and 110 MHz
Recording Size
• Configurable up to 16 TB+
Analysis Display Formats
• Amplitude
• Frequency
• Frequency Shift
• Pulse Width
• Pulse Repetition Interval (PRI)
• Intrapulse Modulation (Amplitude,
Frequency or Phase)
www.northropgrumman.com
Specifications and features subject to change without notice.
© 2013 Northrop Grumman Systems Corporation
All rights reserved.
DS-462-TLK-0113
A330: 13-1247
DSEA:
2013 RM Graphics
• Spectrum Plot
• Spectrum Waterfall Plot (3-D)
• Frequency Shift Histogram
• Delay Time Histogram
• Pulse Frequency Histogram
• RGPO, VGPO and CRGPO
All Data Archived for Post Test
Analysis
Report Generator
• User customizable reports
available in .pdf format
Closely Coupled with CEESIM and
AMES RF Simulators
• Scripted Scenario Control for
Correlation of SUT Response to
Threat Emitter
Tuning Speed
• < 100 ms
External Control
• Ethernet 10/100/1000 Base Tx
For more information, please
contact:
Northrop Grumman Corporation
Amherst Systems
1740 Wehrle Drive
Buffalo, New York 14221-7032 USA
e-mail: amherstsolutions@ngc.com