粒子辐射探测器数据伪对数表达方法

Quasi-logarithmic data expression scheme in particle radiation detector

有限的卫星通信带宽通常限制粒子辐射探测器的通道数和粒子能谱仪的分辨率。据此,提出新颖的数据压缩方案,即伪对数表达方法,来降低测量数据的存储空间,从而缓减通信压力。人们常常采用对数坐标分析粒子探测数据,因此相对误差比绝对误差更有意义。伪对数表达方法在非常小相对误差的前提下对测量数据进行了合理的压缩,有效地利用了有限的数据存储空间,既保证了数据传输的完整性,又不影响数据分析的物理意义。

Limited telemetry-bandwidth usually restricts the number of channels of particle radiation detectors and the resolution of particle spectrometers. This paper gives a new data compression scheme, namely quasi-logarithmic data expression, to reduce the data storage space, so as to lessen communication rooms. Logarithmic coordinate is often used to analyze data of the radiation in space. As a result, relative precision is more important than absolute precision. The quasi-logarithmic data expression can decrease data space with little relative error in reasonable amount not to impact the physical meaning of the data.