Research On Compression Method Of Detecting Signals In Working Pipeline Leaky Magnetic Flux Detection

Ferromagnetism pipeline have been used in many department of industry. The accidents often appear in the late of their service period. So the research on detection of working pipeline is very important. In designing leaky magnetic flux detecting system of working pipeline, research on compression method of detecting signals is one key problem. And it will directly influent the equipment detecting efficiency.The paper gives emphasize to the approach of detecting signals compression. Firstly, through analyzing detecting signals, the paper purposes the train of thoughts that just compressing and storing the flaw signals. Then, according to character of flaw signals, the paper comes up with the compression method of detecting signals, which is based on SPIHT arithmetic, including the compression methods of small flaw signals and big flaw signals.The paper also discusses the software exploitation of detecting signals compression system that is based on DSP. They are provided that the exploiting flow and means of every flow's exploitation in the paper. In the end, C programs for some key arithmetic have been done in CCS that is integrating exploitation environment of DSP.