| A Study on Optimum Hybrid Post-Processing Method for Multiple Telemetry Streams |
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In Jong Kim, Sungpil Lee, Dukjin Chang |
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The 5th Research and Development Institute, Agency for Defense Development |
| 원격측정 다중 스트림 최적 혼합 후처리 기법 연구 |
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김인종, 이성필, 장덕진 |
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국방과학연구소 제5기술연구본부 |
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| Abstract |
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In order to understand flying aircraft, satellite, missile, etc, a telemetry ground system is used to receive, record, and process the transmitted radio signal from vehicles. In some cases, a line-of-sight communication is not possible along to the trajectory of vehicles, and multipath fading result in a shade area of communication. A number of telemetry ground systems are installed to overcome this limitation, and acquire the transmitted signal seamlessly. The telemetry signals received by multiple independent ground systems have independent probability of errors since they experienced their own communication channels. In other words, we can exploit the independent error characteristics of received signals by processing them in a hybrid method. The optimum hybrid post-process method is proposed in this study, and applied to process telemetry signals acquired from flight tests. |
| Key Words:
Telemetry Ground System, Optimum Hybrid Post-Processing(OHPP), Multiple Streams, Optimum Signal Path |
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