Top of the range systems for spectrum surveillance,radio monitoring and emitter geolocalisation.

RMS-DF-XIntercept and DF

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Brief Overview

RMS-DF-X is a family of Intercept andDF systems which allow the operatorto quickly scan the spectrum in order todetect, analyse and geolocalise emitters.RMS-DF-X can operate in automatic ormanual mode, from a local operatorstation or from remote.RMS-DF-X can be used as a stand-

AIRPORT - SHIELD utilises a minimum of 3 RMS-DF-X in orderto detect and geolocalise emitters in airports.

RMS-DF-XFunctional Block Diagram

OperatorStation

WidebandDigital

Receivers

Hardware management& ADC

GPS

I/Q samples + metadata

Frequency plan

GPS data

User defined settings and alarm criteria

BaseBand processor

FFT samples + metadata+ detections

Signal detection algorithms

Direction finding algorithms

Signal analysisEnergy history DF & alarms logger

1 to 5 RF Ch

alone sensor or as part of a widergeolocalisation network. It can alsobe easily integrated into large radio monitoring systems as a wideband signal detection and DF unit.RMS-DF-X combines in the same systemmultiple geolocalisation techniquessuch as correlative interferometry(highly accurate and effective againstLow Probability of Intercept signals)

and TDOA (requires fewer receivers andworks well against wide band signals).RMS-DF-X simultaneously performsspectrum scanning while estimating the Directions of Arrival of all the detected signals; even the shortest emission is detected and geolocalised.This is a key factor in the geolocalisationof fast frequency hoppingcommunications.

System Architecture

RMS-DF-X has a real Software Defined Radio architecture, based on two main components: a software signal processing application called SMS (Spectrum Monitoring Suite) and a set of wideband digital receivers.Depending on the Customer’s requirements, the wideband digital receivers can be selected from a variety of models available on the market, each with different performance and cost. The only change required to integrate a new tuner is the development of its specific software driver.This flexibility allows the Customers to

have new radio monitoring capabilities using hardware acquired in the past.

Just by changing the type and the number of digital receivers, the User can reconfigure the system to fit his operational requirements.For example, it is possible to have:

• a wideband radio monitoring receiver with TDOA (one receiver)

• a dual channel, correlative interferometry, direction finder

with TDOA (two receivers)• a five channel, correlative

interferometry, direction finder with TDOA (five receivers)

SMS Graphical User Interface, from the top: Bearing vs. Frequency, Power vs. Frequency, Power vs. Time/Frequency waterfall, Signal Parameters Table.

• Scan mode: fixed frequency,

frequency bands, channel list

• Multiple signal detection thresholds

• Wideband DF-while-Scan:

simultaneous signal detection

and direction finding

• 3D direction finding for airborne

operations

• TOA and TDOA measurement

for geolocalisation

• Advanced signal analysis features

such as frequency hopping,

automatic modulation recognition,

GPS interference detection, etc.

are available as an option

• Spectrum recording and playback

for off-line signal analysis

• Programmable alarms for automatic

processing of Signals of Interest

• ITU-R compliant measurements

• All Over IP: remote control and

network centric operation

• Open architecture for integration

with third party software

and systems.

There can be different configurations of RMS-DF-X. In accordance with Italian/English law, the transfer, sale and export of some RMS-DF-X configurations may require LOG.IN to apply for an authorization and/or an export permit from the Italian/English Export Control Authorities.

System Capabilities:

SMS - SpectrumMonitoring Suite

SMS (Spectrum Monitoring Suite) is apure Software Defined Radio applicationdeveloped completely by LOG.IN and specifically designed for radio spectrum monitoring and surveillance. SMS can be successfully used in military, homeland security, spectrum management and interference detection applications, whenever it is necessary to detect, geolocalise, identify and analyse a radio emission.SMS’s operational workflow is dividedinto three phases:Survey: scanning of the RF spectrum, detection of signals and estimation

of the directions of arrival.Collection: extraction of the signalsof interest (called alarms) fromthe detected signals, recording of the signals’ parameters into the database.Analysis: demodulation, decodingand specific measurementsof the signals of interest.SMS provides an extensive list of detection criteria (Survey phase)and alarm criteria (Collection phase),reducing operator workload andincreasing system effectiveness.Because all the alarms are recorded into the system database, it is possibleto perform both on-line and off-linesignal analysis.SMS can be programmed to

automatically tune one or more hand-off receivers to specific alarms as well as transferring the alarm parametersto another SMS operator.This approach allows the setupof a radio monitoring network with operators having different roles(e.g. wide band analysis, narrow band analysis, communications transcription).SMS-NET is a software application which allows operators to connect multiple RMS-DF-X sensors and geolocalise emitters. The sensors can be connected via a wired or a wireless network. SMS-NET performs the geolocalisation by combining Directions of Arrival, Time of Arrival (TOA) and Time Difference of Arrival (TDOA) inputs.

RMS-DF-X SENSOR

EMITTER

Typical geolocalisation network based on fiveRMS-DF-X sensors. Sensors are connected using SMS-NET.

SMS-NET

Graphical User Interface

DetectionsRecording(Emitter DB)

Directionsof ArrivalEstimation

Decoding

Recording

AlarmConditions

DetectionConditions

FrequencyPlan

HandOffDemod

Alarm Tasks

SMSOperational Workflow

AlarmDetection

SignalDetection

SpectrumScanning

RMS-DF-2a• Monitoring and DF frequency coverage: 20-2700 MHz

• Instantaneous Bandwidth: up to 12.5 MHz

• Tuning resolution: 1 kHz

• Tuning speed: 3 ms

• Noise figure: 12-14 dB max

• Sensitivity: -108 dBm @ 3 kHz BW

• Phase noise: Typically -115 dBc/Hz @ 100-kHz offset

• Image rejection: 90 dB

• Azimuth coverage: 360°

• Elevation coverage: -10°/+10° with full accuracy, greater with degraded accuracy

• Instrument DF accuracy: typical 0.5° RMS

• The configuration in the picture integrates a hand-off wideband receiver

• Specifications may vary with other RF hardware

RMS-DF-5-R3600 • Frequency coverage: - 9 kHz - 3 GHz monitoring (6 GHz extension available) - 20 MHz - 3 GHz DF (6 GHz extension available)

• Instantaneous bandwidth: up to 24 MHz

• Scan rate: up to 3 GHz/s

• Tuning resolution: 1Hz

• Tuning speed: 3 ms

• Noise figure: 10 dB

• Sensitivity: -114 dBm @3 kHz BW, SNR = 10 dB

• Phase Noise: -120 dBc/Hz @ 10 kHz Offset

• Image rejection: greater than 110 dB

• IF rejection: greater than 120 dB

• Azimuth coverage: 360°

• Elevation coverage: - -10°/+10° with full accuracy - Greater with degraded accuracy

• Instrument DF Accuracy: less than 0.5° RMS with very short duration signals (less than 100 microseconds)

RMS-DF-5-N200• Monitoring and DF frequency

coverage:

50 - 2.200 MHz or 400 – 4.000 MHz

(according to the RF front-end tuner)

• Instantaneous bandwidth:

up to 12.5 MHz

• Scan rate: up to 800 MHz/s

• Tuning resolution: 1Hz

• Tuning speed: 1 ms

• Noise figure: 10 dB

• Sensitivity: -108 dBm @3 kHz BW,

SNR = 10 dB

• Phase Noise: -80 dBc/Hz

@ 10 kHz Offset

• Azimuth coverage: 360°

• Elevation coverage:

- -10°/+10° with full accuracy

- Greater with degraded accuracy

• Instrument DF Accuracy:

less than 1° RMS with very

short duration signals

(less than 100 microseconds)

LOG.INServizi e sistemi avanzatiper l’elettronica srl

Via Aurelia, 71400165 Roma - ItaliaTel. +39 06 66417044Fax +39 06 66411155

Via Mentana, 321021 Angera (VA) - ItaliaTel. +39 0331 960123Fax +39 0331 960123

LOG.INAdvanced ElectronicSystems Ltd

Yeovil Innovation CentreBarracks Close, Copse Road,Yeovil BA22 8RN, EnglandTel. +44 (0) 1935 385908

www.loginshowroom.comsales@loginshowroom.com

All information contained hereinis the property of Log.In srlor Log.In Ltd and cannot be copiedor distributed.Any unauthorised use of this informationis prohibited.

All specifications are subject tochange without notice.

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