Your reliable partner for Electronic Warfare & ICT solutions. Modular COMMS-ESM/COMINT System. SYMON AKRS & EWMAN options
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1 Your reliable partner for Electronic Warfare & ICT solutions Modular COMMS-ESM/COMINT System SYMON AKRS & EWMAN options
2 SYMON Introduction The system SYMON is intended for very fast automated reconnaissance, direction finding, monitoring, technical analysis and localization of radio signals of interest in HF, VHF and UHF frequency bands. SYMON also uses specialized database system which is customized according to the particular customer s requirements. The system can produce intelligence reports and formalised messages according to the national standards. Example of system configuration is shown on Fig. 1. SYMON is open and easily connectable to the national EW system. The technological part is based on digital monitoring/ scanning receiver IZ 225 and optional direction finder. Number of scanning receivers is given by the customer s requirements. Basic configuration is equipped with 2 pieces of IZ 225 receiver. Antenna system covers frequency range from 10 khz up to 6 GHz according to the selected modification. System is also equipped with a special AF streaming recorder for real time IP recording of AF signals from receivers. Geographical component GEO3D is used for presentation of localization and direction finding (DF results and reporting of actual radio situation. Radio localization is included (in correlation of different DF results). SYMON includes AKRS software application for online and offline radio signal analysis and classification with analysis of IQ raw data with bandwidth up to 500 khz (with IZ 225 receiver) with special database structure for self learning. All radios are shared for different tasks, i.e. the system uses sophisticated device management for planning the operation of receivers according to the real situation during a mission (for example, all receivers can be used for monitoring or all receiver for scans or one receiver is intended for monitoring and the rest for a scan, etc.). SW is fully developed by URC Systems with many years of experience in EW systems projects. SYMON can be easily modified according to the particular customer s requirements. Customisation is included in the price. System Highlights Frequency range Scanning speed Real time DF window Raw IQ data from receivers Database system All required alphabets decoded Scanning/monitoring Direction Finding SYMON is intended for an operation of both stationary and on the move. All technology is mounted on 19 rugged rack, i.e. the system is very compact and intended for easy installation into vehicle (at least SUV 4x4). 10 khz up to 6 GHz (10 khz to 3 GHz basic configuration) limited by used/selected antennas 500 khz up to 3 GHz (20 MHz to 3 GHz basic configuration without HF DF antenna) 71 GHz/s with resolution 12.5 khz 107 GHz/s with resolution 25 khz up to 20 MHz up to 10 MHz continuous stream according to national standards Option HF DF Antenna VHF/UHF DF Antenna RF Line Ethernet Complete radio scenario recording and off line analysis Different types of measured results presentation (waterfalls, IF signals, audio signals and next) control control HF Antenna VHF/UHF Antenna SW is modular, opened and fully documented System can share DF results with other DFs in the master EW system (with known protocol and communication systems) DF/SCAN Antenna Splitter Antenna Combiner RX 1 Monitor/Scan RX N Monitor/Scan IF out IP switch Decoder Monitor 1 AF RECORDER Technology PC Control PC + GUI Monitor 2 Fig. 1: SYMON hardware components example
3 Software Architecture Software architecture of SYMON is split into 3 categories: 1. Spectrum control software (SPECON) 2. Analysis and classfification of radio signal software (AKRS) 3. Command and control software (EWMAN, SYMON DB, SYMON MAN) 1 Spectrum control software SPECON Control and management software is divided into three layers Devices control layer Application layer Presentation layer (GUI Graphical User Interface) 1.1 Devices control layer Implements transparent access to multiple types of measurement devices. Provides testing, configuration, measurement, results recording and device status and reports errors. This layer is divided into standalone modules that perform a few specific jobs Reconnaissance module Monitoring module Direction finding module Station position and time synchronization module and measurements Distribution of demodulated signals from receivers among more operators via LAN (replaying of these signal is done by means of operators PS soundcard) Possibility of simultaneous listening of more receivers (for example left and right speaker, etc.) Direction finding module According to type of used direction finder implements Direction finding of requested targets in activity time or Direction finding for all requested bands Saving measurement results into files with time and position stamps Store information to DB about generated files and measurements Station position and time synchronization module It implements distribution of station position to all measurement modules and control of time synchronization among all stations for direction finding. Can exploit results from already used direction finders in EW system. Narrow band reconnaissance FSCAN GUI (see Fig. 3) implements presentations of scanned bands. In band indicates Targets Disabled bands and frequencies Monitored channels Known channels with information stored in DB Operator is able to Add frequency to targets list with parameters for receiver Add frequency to disabled frequency list Start or stop audio recording Start or stop IF recording Start or stop direction finding Get or set information about frequency Direction finding GEO3D GUI (see Fig. 5,Fig. 6, Fig. 7) provides results of measured targets or select sub list for visualization including DF. Options available Computing point-point radio and optical visibility Computing radio visible area Make point-point relief Fig. 5: Visualization of DF information on digital map Reconnaissance module 1.2 Application layer Implements Bands scanning Activities detection Exclusion disabled bands and frequencies Activities detection of target frequencies (begin, end) a send this events to Application layer Jamming control (if present in system) Measurement recording and storage the information about generated files into a Database Multiple simultaneous frequency band monitoring/scanning and result (from these bands) distribution among all operators in the system (fast scanner sharing) Implementation of system logic depends on the customer demands. It provides transparent interface for measurement layer. Integrates different measurement types (scanning, monitoring, direction finding, etc.). 1.3 Presentation layer (GUI) Wideband ultra fast reconnaissance PAMON GUI (see Fig. 2). Fig. 3: Presentation of scan results Fixed frequency monitoring FFMode GUI (see Fig. 4) provides current level of signal, listening demodulated signal, add operator's notes with time stamps. It stores all monitored time with notes, GPS positions, and DF results into file. Fig. 6: Estimation of visibility in GEO3D Monitoring module It provides monitoring of active targets according to the number of monitoring receivers in the monitoring system. It starts and controls activities and measurements requested for every particular target. For example Initiation of receiver setting Recording of IF signal Recording of demodulated audio signal (with mp3 encoding) Immediate direction finding at the beginning of activity, removing from DF list at the end and calculate average direction and result quality Information storing to DB of all generated files Fig. 2: Presentation of wideband scanning 20 to 2000 MHz selection of new activities only Fig. 4: Monitoring of one frequency Fig. 7: Multipoint visibility in GEO3D
4 Analyzation Software 2 Overview Eye-pattern diagram with symbol resampler and level quantizer (decoding the demodulated signal to a bitstream) Voice data decoder for selected systems (DMR, DPMR, NXDN, Tetra DMO,...) Command and Control Software 3 Overview 3.2 EWMAN Analyzation software AKRS is intended for measurement and processing (analysis and classification) of radiosignals (Fig. 6, Fig. 7). On-line monitoring of channel/subband Digital IF signal recording Off-line processing of signal recordings Real-time analysis of known-types of radio signals Device and signal pattern database for analysis support Direct receiver control 2.1 On-line channel monitoring and measurement Setting of receiver's parameters (channel frequency, bandwidth, input sensitivity, ATT, AGC, AFC, etc.) Real-time spectral analysis (IF panorama) Manual or automatic activity watching and recording Included file info and receiver/measurement summary 2.2 Spectral analysis and signal selection Automatic spectrogram or spectrum preview with adjustable parameters Spectrum max-hold and average, accumulated spectrum image Markers for time/frequency window selection Signal selection based on software defined receiver technology Adjustable carrier frequency and output bandwidth Selectable resampling of output signal Manual or automatic input gain (MGC, AGC) Spectrogram and spectrum of output signal region 2.5 Device and pattern database Signal pattern saved with analysis tool chain (sequence) and all setting parameters Pattern creator tool for editing device and signal pattern parameters Pattern manager for viewing, using and editing database items (devices and patterns) Database search according parameters filter Dual mode database: shared server or local database, database synchronizer to actualize patterns Local patterns save analyzation tool chain to local store (without db server) 2.6 Other tools and possibilities Real-time analysis: real-time processing of selected analyzation tools chain Data manager to administrate IF records in directory tree Data exporter for selected IF region output or demodulation output in standard file format Export possibility for all graphic outputs of all analysis tools Off-line or real-time audio playback SYMON Command and Control Software includes applications SYMON DB, SYMON MAN and EWMAN as option. SYMON MAN application is intended for receiver s management. 3.1 SYMON DB Application SYMON DB is implemented on the top of PostgreSQL database server. This solution gives us a powerful relational database system with advanced mechanisms like triggers, stored procedures, transactions, etc. and with all the advantages of open source system. SYMON DB supports Activities Frequencies of interest with jobs (what to do when) Disabled and own frequencies and bands Known frequencies Storage for measurements Assets track (position with timestamp) Activities (frequencies of interest) DF results (frequencies of interest) IF and Audio files (frequencies of interest) Geo3D objects Secure places Points of interest Dangerous areas The sofware application EWMAN provides tools for commanders in planning and decision making process, during working cycle as well as in the reviewing and reporting stage on EWCC (EW Coordination Cell). Using GUI the commander is able to define own operational units and its technical equipment which is used in a mission. Every technical device has its technical parameters, that may be also defined in database. Most important feature of the GUI is task planning capability. The commander is able to create a new task for his stationary or mobile unit. Mission objective is defined by several criteria, e.g. start date, end date, known frequencies, dangers, restrictions, jamming tasks, special requirements, GPS route, etc. There is also an option to group several tasks together into a super-task. This becomes useful when planning a task for convoy of differently equipped vehicles. Reporting tool is another important module in the system. It provides commander with tools for gathering statistical and analytical data stored in the database. The data can be filtered and sorted on various criteria, it can be merged together with pictures, graphs and other additional information into a complex report. EWMAN application includes GEO3D component intended to capture, store, manipulate, analyze, manage, and present of geographical data and objects. 2.3 Signal demodulation Normalized amplitude envelope with squelch levels Time scope of demodulated signal (AM, FM, PM, RE, IM, QAM) Time cursors for time interval or period measurement Level cursors for modulating states deviation measurement Filtering option for demodulated signal or amplitude envelope Automatic burst detector and deburster Fig. 8: Presentation of analysis of dual modulation system (MFSK-20 in FM - F2D spectrogram of FM and FSK, demodulator of FM and FSK and part of symbol matrix) 2.4 Analyzation tools Automatic symbol rate detection Symbol matrix visualization (TDMA timeslots with synchronization or training sequences, analog picture systems) Histogram of demodulated signal (full time or shorttime histogram waterfall) Carrier frequency detection for PSK and QAM modulations IQ constellation diagram (adjustable carrier frequency and phase offset) Fig. 9: Results from NXDN (KENWOOD handheld radiostation) decoding Fig. 10: Complex EW & JISR URC Systems solution
5 URC Systems, spol. s r.o. ISO 9001:2009, 14001:2005 Registered Company AQAP2110 URL: urc@urc-systems.cz Head office: Vrahovická 156b, Prostějov, Czech Republic Tel.: Fax: Brno branch office: Pražákova 49, Brno, Czech Republic Tel.: Fax: Prague branch office: Na Záhonech 809/6, Prague 4, Czech Republic Tel.:
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