Handle Non Standard Formats in CH4 PCM Frames

Abstract

Telemetry data encapsulation protocols are constantly evolving. Telemetry ground stations must handle these new data formats in order to allow test engineers to supervise and analyze flight tests. Some of these formats are standardized (IRIG CH4 Class I and II, CH7, CH10, etc.); Data Processing Systems can be designed to extract these standard data formats from PCM frames. New non-standard data formats are appearing in telemetry frames. These formats are not compatible with standard extraction methods. This article deals with the experiment set ups and the performances obtained to handle non-standard data formats without processing a complete refurbishment of the Data Processing System Software.