Abstract. The article focuses on the history of ionospheric research using the incoherent scatter method at the Institute of Solar-Terrestrial Physics and development of the only incoherent scatter radar in Russia, which is located near Irkutsk. It describes the radar features and the current situation of research at the Irkutsk Incoherent Scatter Radar (IISR). Operating modes and types of measurements of the radar are specified. There is a brief description of the original measurement techniques that were developed considering the IISR features such as the frequency principle of scanning and receiving of one linear polarization of a scattered signal. The main feature of the IISR is the possibility of obtaining absolute values of the ionospheric plasma electron density. The automatic method for constructing the electron density vertical profile is based on registration of vertical profiles of a rotation phase of the polarization plane of a scattered signal. The method does not require calibration with additional facilities.

中文翻译：

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伊尔库茨克非相干散射雷达：历史，现在和未来

摘要。本文着重介绍了太阳-地面物理研究所使用非相干散射方法进行电离层研究的历史以及俄罗斯唯一的非相干散射雷达的发展，该雷达位于伊尔库茨克附近。它描述了雷达的功能以及伊尔库茨克非相干散射雷达（IISR）的研究现状。规定了雷达的工作模式和测量类型。简要介绍了考虑了IISR特性（例如扫描和接收散射信号的一个线性极化的频率原理）而开发的原始测量技术。IISR的主要特征是有可能获得电离层等离子体电子密度的绝对值。构造电子密度垂直轮廓的自动方法是基于散射信号的偏振面的旋转相位的垂直轮廓的配准。该方法不需要使用其他设施进行校准。