• MIMO Capacity Gains for Test Range Telemetry

      Reed, David E.; Rainhard, Robert L.; Real Time Logic, Inc. (International Foundation for Telemetering, 2013-10)
      The combination of power limitations and platform dynamics often preclude the use of highly bandwidth efficient modulations for test range telemetry. Instead, constant envelope modulations like pulse coded modulation - frequency modulation (PCM-FM) and other continuous phase modulation (CPM) are typically used. A solution may be to employ multiple-input multipleoutput (MIMO) antenna techniques. MIMO processing may be used to separate the signals from multiple transmitters. If data is dynamically allocated to the transmitters with acceptable received signal-to-noise ratio (SNR), the telemetry throughput may be optimized. The performance depends on the geometry and propagation conditions between the antennas.