For over 12 years, our next-generation Correlating and Non-Correlating Best Source Selector units have been successfully acquiring and enhancing signals through proven algorithms for thousands of missions.
Taking advantage of spatial diversity, GDP’s Best Source Selectors (BSS) automatically correlate data streams from multiple antennas in time to each other and utilizes bit-by-bit quality information to achieve significant performance gains of over 5dB. Receiving data from a moving source such as an aircraft, missile, or launch vehicle is a significant challenge due to multipath, noise and fading. Typically, Telemetry Receivers are strategically located at multiple locations on any given test-range in an attempt to increase signal acquisition and integrity.
As the test vehicle goes through its maneuvers, the received signal degrades at one receiver and improves at another. Since the GDP BSS correlates the data streams in time to each other (encrypted or clear), it can use the bit-by-bit signal quality information and switch from stream to stream on as little as a bit time without dropping lock in downstream frame synchronizers (seamless bit-by-bit switching). GDP’s modern BSS techniques allow users to achieve, in real-time, what previously had to be done post flight.
- Diversity Combining / Correlating
- Works with Encrypted Data
- Superior Fade / Multi-path Mitigation
- Processes IRIG or GDP DQE/DQM Inputs
- Over 5dB Performance Gain
- Direct Ethernet TMoIP I/O
- Analog or Digital I/O
Model 2267C Correlating/Diversity Combining Best Source Selector accepts up to 16 input data streams. Each channel may be from digital data and clock or from optional Ethernet output packets. Each channel is independently assigned to one of up to six Best Source output processing groups.
Model 2266C Multi-Channel PCM Bit Sync/ BSS houses up to 8 high-performance channels. Each individual channel can be used as a normal Bit Sync and/or selected as a source for Best Source Selection. The optimized digital design of this unit affords the highest performance characteristics currently available.
Model 2602P BSS is an ideal solution to the task of real-time automated selection and output switching of best quality stream data from multiple range telemetry link sources. The MD2602P accommodates a wide range of rate and virtually all IRIG format compliant PCM frame definitions.