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Mikrofalowe detektory częstotliwości pozwalają na natychmiastowe określenie częstotliwości nieznanego sygnału mikrofalowego w bardzo szerokim paśmie. Kluczowym problemem dla uzyskania określonej precyzji pomiaru jest niejednoznaczność charakterystyki wyjściowej detektora w wybranym przedziale częstotliwości. Zastosowanie w strukturze detektora częstotliwości dodatkowego przesuwnika fazy pozwala na...
The construction, parameters and measurement results of living human location device have been presented in the paper. The device works basing on the short range low power noise radar. Because of using broadband noise signal and correlating receiver, high measurement precision and high sensitivity have been obtained. The radar works with 500 MHz band in S-band. Due to Doppler frequency measurement...
The idea of microwave quadrature correlation as well as the block diagram of the microwave broadband correlation receiver are presented in the paper. Measurement results for the function of noise signal correlation are shown. The application of such noise radar solution is presented for precise determination of distance changes and speed of these changes. Conclusions and future plans for the use of...
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