Zhurnal Radioelektroniki - Journal of Radio Electronics. eISSN 1684-1719. 2021. №10
ContentsFull text in Russian (pdf)
DOI: https://doi.org/10.30898/1684-1719.2021.10.2
UDC: 621.376.23
METHOD OF DEMODULATION OF RADIO PULSES, BASED ON THE APPLICATION the principle of coherent samples
H. R. Avanesyan
Special Design Bureau of the Moscow Power Engineering Institute,
14 Krasnokazarmennaya str., Moscow, 111250
The paper was received September 30, 2021
Abstract. The paper proposes a radio pulse demodulation method which allows to extract the signal envelope by taking coherent samples with a frequency not exceeding the carrier frequency of the received signal. The paper demonstrates the possibility of creation of inertia-free demodulators based on the proposed method, whose principle of operation is reduced to performing basic operations in the time domain and forming samples, whose position corresponds to the expected amplitude values of the carrier oscillation and depends on its frequency. Calculations of the errors in determining the amplitude of demodulated signal, the factors affecting the errors, and ways to reduce them are shown. The specific results of studies of the capabilities of the proposed method obtained on the model of a base-based digital demodulator are presented.
Key words: demodulation, envelope, radio pulse, carrier frequency, coherent sampling, time interval, discrete reference.
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For citation:
Avanesyan H.R. Method of demodulation of radio pulses, based on the application the principle of coherent samples. Zhurnal Radioelektroniki [Journal of Radio Electronics] [online]. 2021. №10. https://doi.org/10.30898/1684-1719.2021.10.2 (In Russian)