Acoustooptical pulsar processor. Application of frequency scale calibration

被引：0

作者：

Esepkina, Nelli A. ^{[1
]}

Lavrov, Aleksandr P. ^{[1
]}

Molodyakov, Sergey A. ^{[1
]}

Oreshko, Vasiliy V. ^{[2
]}

机构：

[1] St Petersburg State Univ, St Petersburg, Russia

[2] Pushchino Radio Astron Observ FIAN, Pushchino, Russia

来源：

LASERS FOR MEASUREMENTS AND INFORMATION TRANSFER 2006 | 2007年 / 6594卷

关键词：

pulsar processor; acoustooptic spectrum analyzer; CCD photodetector; scanning operation mode; frequency scale calibration; pulsar;

D O I：

10.1117/12.725617

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The acoustooptical processor (AOP) is based on an acoustooptical spectrum analyzer with a CCD photodetector operating in a special pipeline operational mode (shift-and-add mode), which allows spectral components of the input signal to be added with a controlled time delay immediately in the CCD photodetector. The proposed AOP was successfully used on an RT-64 radio telescope (Kalyazin Radio Astronomy Observatory FIAN) for the observation of pulsars at 1.4 GHz in a bandwidth of 45 MHz. The frequency scale calibration allows increasing accuracy measurement of time of arrival radioemission pulsar. Experimental results of frequency scale calibration and pulsars profiles for a pulsar PSR 1937+21 are submitted.

引用

页数：9