CARD-M - Complex for Analysis of Radar Data (Modernized)

Complex for Analysis of Radar Data (in short CARD) – is automated workstation, which intended for monitoring, recording and evaluation of output radar data and some parameters of data from ATC, which is transported by communication channels in ASTERIX protocol.

CARD-M is set of hardware and software components for:

Connection to output radar data interfaces (HDLC, RS-232, Ethernet LAN);
Evaluation of Reliability of received data packets on channel level;
Correspondence evaluation of received authentic packets to expected data format;
Recording of received data to files;
Statistical data processing;
Decoding and graphical display of recorded data in continuous and step-by-step mode;
Creation of flight check report for radar.

Complex allows to solve number of additional tasks of analysis in process of radar Flight checks

The complex consists of:

Interface equipment for connecting to radar data (adapter HDLC->RS232->USB).
Computer processor unit.
Computer peripheral equipment: 2 monitors, keyboard, mouse, printer.
Receiver of ADS-B data in format DF-17 – Kinetic Avionics SBS-3 1090 mHz.
Receiver of GPS signals for accurate time correction.
Communication equipment: analogue (voice) modems – Tainet, digital SHDSL modems – Dynamix.
Specialized unique software.

Specifications:

CARD-M provides a continuous non-stop operation.
Two sets of equipment provide operation in redundant mode.
CARD-M provides an interface to the sources of information on the serial interfaces using the modems, as well as on the local area network via specification 10/100/1000 Base-TX.
CARD-M provides an interface to the following sources of information:
- aerodrome and en-route primary and secondary radars;
- systems for automatic dependent surveillance broadcast with extended monitoring functions in the mode of ADS-B 1090 ES;
- automatic direction finders.
CARD-M provides a display of:
- information from primary radar in the “raw video” mode;
- information about the history, actual and extrapolated location of the aircraft according to the surveillance systems;
- cartographic information;
- system data (setup of input data ports, current user information etc.);
- direction finder information.
CARD-M provides processing information in the zone with the following parameters:
- by area - 200x200 km;
- by height from 0m to 15000 m.
CARD-M provides surveillance data combining from multiple sources (aerodrome and en-route primary and secondary radar, automatic dependent surveillance systems). The number of simultaneously connected to the product and process information sources - not less than 3.
CARD-M provides delivery to display the current location of the aircraft in the form of marks at a predetermined pre-history.

Purpose and general information about the applications included in the complex CARD-M

Application CARD-M_WRITE is designed for the following tasks:

On the first channel of the reception of radar data from:
- COM port output from HDLC adapter (built into the extractor, RHP) or from the output of the receiving modem (RS-232C interface);
- Ethernet LAN in the protocol Multicast UDP.
Note: Receiving data from the COM port (RS-232) is carried out through a specialized unit HDLC-RS232-USB converter. Unit Converter converts synchronous data transfer protocol HDLC at speeds from 50 bps to 28800 bps to asynchronous RS232 at a fixed rate of 115200. Power of converter unit (+5v) and data transfer is carried out via a USB cable.
In the second channel from Ethernet LAN in the protocol Multicast UDP reception of ADS-B data (ASTERIX category 21), or the system tracks data (ASTERIX category 10, 19, 20, 62, 65).
Comparing the coordinates in azimuth and range (the difference between them and standard deviation) between the two channels from one aircraft.
Display units of ASTERIX input data stream in hexadecimal (HEX) code.
Recording the received data in files in the intervals of 60 minutes.
Analysis of data corruption in the communication channel (for HDLC protocol, because Multicast UDP data is controlled at the network level) and matching to the ASTERIX format.
The number and percentage of "short" (less than the minimum possible length of 10 bytes) HDLC frames.
The number and percentage of "long" (higher than the maximum possible by format length of 512 bytes) HDLC frames.
The number and percentage for an interval of 10 seconds of bad HDLC frames with mismatch checksum CRC16.
Percent fill of communication channel (time of data transmission in channel when transmitting data packets for 10 seconds). At a given data rate of 9600 bps or 19200 bps.
Counting the number for each category received packets ASTERIX during 10 seconds (including the channel and loading percentage for HDLC).
Display of radar data in real time on the display round view (PPI).
Displays the status of radar complex, data which transmitted as part of ASTERIX categories 2, 34.
Detection and display of gaps (packet loss) for sector and north marks.
Displaying weather information transmitted from the radar complex in ASTERIX category 8 (formats I008 / 036, I008 / 038).
Selection to display only those aircraft the values of target ID (Callsign, Squawk, 24-bit ICAO address) of which partially or fully match to the defined ones.
Backlight system tracks with a radius correctness Rc[m] less than the specified. Where Rc[m] - integral index of precision positioning for the categories ASTERIX 10 (Field I010/500 Standard Deviation of Position), 20 (Field I020/500 Position Accuracy), 21 (Field I021/090 Quality Indicators (PIC)).

Application СARD-M_VIEW is designed for the following tasks:

Decoding of the data from the file records of category ASTERIX 1, 2, 8, 10, 19, 20, 21, 34, 48, 62, 63, 65, 250 and mapping the decoded data in a table in accordance with the UAP tables (User Application Profile) as specified in the documents of EUROCONTROL;
The display on the PPI information on aircraft position in step-by-step and continuous accelerated mode;
Display the decoded data of radar complex status (ASTERIX categories 2, 34) and the detection of gaps (packet loss) in transmission of sector and north marks;
Performing a search (filtration of) the data according to certain specified criteria with the purpose of their subsequent separate decode and display on the PPI.

Application CARD-M_ANALYZER is designed for the following tasks:

The calculation of the probability of target detection radar indicators for primary and secondary channel.
The calculation of probability indicators provides additional information (Mode-A, Mode-C).
Calculation of dead funnel of radar at a predetermined height.
The calculation of the maximum detection ranges of the radar at a predetermined height.
Calculation accuracy of radar characteristics in range and azimuth.
Calculation bias of radar range and azimuth relative to the reference GPS coordinates of laboratory plane or ADS-B data from other aircraft.
Calculation accuracy of determining the characteristics of the radar tracker speed and heading of the aircraft in comparison with the data from ADS-B, or data of laboratory plane.
Statistical analysis of the passage of additional information Mode-3A (Squawk) and MODE-C (Height).
The calculation of the integrated probability for detecting by heights.
Making a report for flight check of radar in the prescribed form.
Preparation of the report for flight check of radar in the prescribed form.

Application SysRadMonitor-M is designed for the following tasks:

Reception of radar data and system track data from the ATC, in which participate selected radar.
Processing and display of radar data and system tracks on the monitor.
Displaying cartographic data and information on the structure of the airspace.
Writing to a file received data and playback on the PPI recorded data.
Comparison of the data from radar and data from the ATC, on the selected aircraft.
Calculation of error between the coordinates of the aircraft from radar and ATC in range and azimuth.
Displaying of a planning information in the aircraft's logbook, received as part of the category ASTERIX 62.

Application CARD-M_ADS-B is designed for the following tasks:

Getting data from ADS-B receiver SBS-3 via an Ethernet connection.
Formation of the message category ASTERIX 21 and issue them in the LAN Protocol Multicast UDP. These packages are used by program ASTERIX CARD-M_WRITE and can be transferred to other consumers (eg ATC).
Simplified display on the PPI provisions of aircraft on which ADS-B data were obtained, as well as statistics on the number and type of DF information received.