Author:
Wang Jin ,Wei Zheng-Jun ,Wang Geng ,Guo Li ,Wang Jin-Dong ,Zhang Zhi-Ming ,Guo Jian-Ping ,Guo Bang-Hong ,Liu Song-Hao ,
Abstract
According to performance requirement of high precision temperature control system used in single-photon detector, the signal-to-noise improvement ratio (SNIR) achieved by digital averaging used in it is analyzed, and the functional relation between SNIR and average times, sampling period, length of sampling time and bandwidth of band limited white noise is given. Aiming at practical application, on condition that the total sampling time is limited, the influences of average time and sampling period on the SNIR of the system are calculated respectively, the expression of SNIR is given and the optimal sampling time is defined.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
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