Video acquisition telemetering device and method with adaptive code rate adjustment

• Main Authors: YUE GUIJIN, MA XIAODONG, XING JINTAO, ZHANG HULONG, FENG YIMING
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2024
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

The invention relates to the technical field of aviation airborne video telemetering, in particular to a video acquisition telemetering device and method with a self-adaptive code rate adjustment function. The device comprises a video acquisition module, a video compression coding module, a PCM coding module, an airborne transmitting and receiving module, a ground transmitting and receiving module, a telemetering link quality evaluation module, a PCM decoding module, a video compression decoding module and a video display unit. The quality of a telemetering link is evaluated by judging the quality of a telemetering video picture through a ground monitoring system, when the quality of the telemetering link is reduced, an airborne video collecting and coding system automatically adjusts the code rate of PCM coding and a corresponding video transmission channel, it is guaranteed that the quality of the telemetering downloaded video picture is available as much as possible, and when the quality of the telemeterin