Correlating Best Source Selectors

Receiving data from a moving source, such as an aircraft, missile, launch vehicle or ground vehicle is a significant challenge. Telemetry Receivers are often strategically located at multiple locations on the test-range in an attempt to increase signal integrity. As the test vehicle moves / maneuvers, the received signal degrades at one site while it improves at another. Combining data from multiple sources is the only way that a complete and accurate record of the test can be developed. Traditionally, this is a post-mission activity, which often does not yield the desired result.

GDP offers products that, in real time, process multiple signal sources to produce the best, most accurate resultant data. This is accomplished by seamlessly combining the best bits from each source based upon real time measurements of data quality and majority voting. Knowledge of the data content, such as a frame synchronization pattern, is not required. Therefore, even encoded or encrypted data streams are reliably processed.

For the first time, signals can be combined from spatial diverse antennas to remove or minimize the effects of fades and multi-path. The GDP Correlating Best Source Selector always makes the most reliable and accurate data available for down-stream processing and analysis.

Did you know? GDP Space Systems has been the leading innovator of Best Source Selector (BSS) technology for over a decade, with units used daily at sites around the world. The Atlantic Test Range (ATR) at Patuxent River (PAX) has been using GDP’s BSS units successfully since 2007.

Model 2266C Multi-Channel PCM Bit Synchronizer Diversity Combining Best Source Selector

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 2266C Multi-Channel PCM Bit Synchronizer Diversity Combining Best Source Selector

Model 2267B Multi-channel Diversity Combining Best Source Selector

Model 2267B Diversity Combiner Best Source Selector houses up to 16 high-performance synchronizer modules. Each channel can be used as a normal Bit Synchronizer and/or selected as a source for Diversity Combining Best Source Selection.

Model 2267B Multi-channel Diversity Combining Best Source Selector

Model 2265EC Bit Synchronizer / BSS Remote Encapsulation Unit


Model 2265EC Multi-Channel PCM Bit Sync / Encapsulator houses up to 4 high performance channels in a 2U chassis. This unit can be used as a stand-alone bit sync and as a data Encapsulator for the GDP Diversity Combiner / Best Source Selector products.

Model 2265EC Bit Synchronizer / BSS Remote Encapsulation Unit

Model 2602P Correlating Best Source Selector

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.

Model 2602P Correlating Best Source Selector