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Controlling holographic radar RASCAN via SPI interface

DOI 10.18127/j15604128-201805-02

Keywords:

I.A. Vasilev – Ph.D.(Eng.), Associate Professor, Bauman Moscow State Technical University
E-mail: ivasiliev@rslab.ru
M.A. Chizh – Post-graduate Student, Junior Research Scientist, Bauman Moscow State Technical University
E-mail: mchizh@rslab.ru


In this article, the control scheme of the RASCAN radar via the serial peripheral interface SPI is described. As the controlled objects, a transmitter, a receiver and a scanning system of the holographic radar are considered.
A shift register is used for selecting the managed device. The device selection command is transmitted via the SPI interface. The select bit of the register is transferred to the corresponding device and activates it. Thus, the device control consists of two stages. At the first stage, the device selection command is given via the SPI interface, and at the second stage, this device is connected to the MOSI line for receiving the control code or to the MISO line for reading information.
To ensure the stable operation of the communication link between the radar and the control unit, a scheme with the use of buffer amplifiers is proposed. To each line of the SPI interface at its both ends, a pair of inverting operational amplifiers is connected.

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