Abstract

A backend system for registration narrowband cosmic radio emissions provides the computing of power spectra using the fast Fourier transform method. The amplitudes of the spectral components are calibrated by low-power noise pulses that are fed to the receiver from a modulated noise generator. A wide-band radiometric channel for calculating the unevenness of the power of noise pulses in the operating frequency band was introduced, which made it possible to increase the accuracy of measuring the amplitudes of the studied signal spectrum by approximately 4 times. This ensures the registration of weak non-stationary space radio emission.

中文翻译：

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用于注册窄带宇宙无线电发射的后端系统

摘要

配准窄带宇宙无线电发射的后端系统使用快速傅立叶变换方法提供了功率谱的计算。频谱分量的幅度由低功率噪声脉冲校准，该低功率噪声脉冲从调制噪声发生器馈送到接收器。引入了用于计算工作频带中的噪声脉冲的功率不均匀性的宽带辐射测量通道，这使得将研究信号频谱的幅度测量精度提高了大约4倍。这确保了微弱的非静止空间无线电发射的记录。