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The Radar Digital Scan Converter DSC-320 from Target Corporation is the newest innovation in the field of information presentation. This state-of-the-art unit provides the capability to display real time radar video on existing workstations. The unique design also supports a dual channel version, the DSC-321, to facilitate the simultaneous processing of two synchronous or asynchronous radars, such as:
The VIVIE based DSC-320/321 convert radar range (rho) and azimuth (theta) PPI video into high resolution RS-343 raster scan video. This video is synchronized and mixed with the RGB video supplied from the workstation (typically TAC-4, TAC-3, DTC-2, VAX-400, IRIS, etc.). The synchronization of the signals is critical to ensure a registration accuracy of less than 0.2 pixel. The resultant image displayed to the operator is a seamless view of alphanumerics, symbology, processed synthetic data, and radar.
Utilizing sophisticated chroma-key discrimination circuits, the DSC-320/321 can position the real time radar video either behind, between, or in front of the data generated by the workstation, without compromising the color integrity of any of the video data. This feature allows the operator to establish priorities between maps, radar, symbology, and alphanumerics.
Optimum performance is achieved from radar video mixing when operating with workstations with these characteristics:
FEATURES
The mode and command controls are input through an RS-232 serial communications link from the workstation.Single/dual channel processing
- Two video inputs per channel
- Azimuth interpolation to fill holes
- Sector scan (synchro input)
- Video Intensity
- Chroma key Control
Independent channel control
- Range 1/4 nmi to 250 nmi or 1/2 nmi to 500 nmi
- Continuous offset
- Image Zoom
- Image rotation
- Video decay (trails)
- Image freeze
- Image erase
- Image enhancement (peak, integrate, substitute)
- BIT initiation
RADAR INPUTS
Accepts one or more synchronous or asynchronous radar video signals together with a zero range trigger and the antenna bearing angle in either synchro or ACP/ARP format. Radar characteristics are:
- Radar video signal + 1.0 to 5.0 Vp/p - operator adjusts video gain.
- Radar pulse width - 50 nanoseconds (option to 25 nanoseconds).
- Radar trigger signal
- pulse width 1.2 µsec 0.8 µsec
- PRF 100 to 6000 pps
- timing coincident with range zero- Azimuth signal
- ACP-CW, ACP-CCW, ARP (pulse width 1 to 5 µsec) Analog 8 or RS-232 or 422
or
- one speed 5 wire synchro, 90 vrms line to line, 60 Hz to 400 Hz- Antenna rotational rate - up to 60 RPM.
DSC-320/321 OUTPUTS
The high resolution raster output is a 1280 pixels/line by 1024 line RS-343 format at 60Hz to 72Hz (factory set) non interlaced. The synchronized radar video covers the central 1024 by 1024 portion of the output.
BUILT-IN-TEST
Built-in test (BIT) is provided to dynamically test and verify performance. The unit automatically checks itself upon turn-on. If a fault is detected, a board LED illuminates indicating a faulty circuit card.ADDITIONAL DATA
Card cage with 19 VIVIE slots, self-contained power supply (supplying +5V, -5.2V, -2V, 15V) and cooling fan/plenum system is mounted in a 14" high by 20" deep and 17" wide chassis with a 14" high by 19" wide front panel for standalone or rack mounting.
- Power requirements are - 115 Vac, 47 to 440 Hz, 1 phase, 280 VA.
- Weight: 40 pounds.
- Environmental: ruggedized or full military specification.
- MTBF: 12,000 hrs.
APPLICATIONS
The DSC has various applications including but not limited to Military Command and Control, Air Traffic Control, Collision Avoidance, Harbor Navigation, Littoral Surveillance and Warfare and Training/Simulation Systems. Our display system's engineers are eager to discuss with you your intended application of the dual channel DSC with and without mixer board.
