管网泄漏监测数据采集中实时近无损压缩

提出了一种适合于管网泄漏监测数据采集的通用、低复杂度的近无损压缩算法.该算法在研究泄漏信号特点的基础上设计了专门的预测器和误差可控的量化方案,并采用Rice编码对量化后的预测误差进行编码.实验结果表明,该算法在管网泄漏监测数据采集中是有效的,在取得较高压缩比的同时保持低的失真度,而且具有实时编码的优点.

Design of Real-Time and Near-Lossless Compression Applied in Pipelines Leak Monitoring Data Acquisition

A near-lossless compression technique with universal and low-complex character is proposed and implemented in pipelines leak monitoring data acquisition.A general predictor and error-controlled quantization method are designed based on the research of leak signal;and the quantized prediction error is encoded by Rice codes.The experimental results show the present algorithm is effective in pipelines leak monitoring data acquisition,and can obtain higher compression ratio with high fidelity,also has the advantage of real-time encoding in this system.