PULSE DOPPLER RADAR DEVICE
PURPOSE:To identify and capture a target smoothly without causing electric wave interference to be generated between antennas even if electric waves with the same frequency are transmitted or received by two or more adjacent antennas. CONSTITUTION:A pulse signal created by a signal which is oscillat...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PURPOSE:To identify and capture a target smoothly without causing electric wave interference to be generated between antennas even if electric waves with the same frequency are transmitted or received by two or more adjacent antennas. CONSTITUTION:A pulse signal created by a signal which is oscillated by an oscillator 2 according to M-series code signal, train generated by a signal generator 1 is modulated and is output from an antenna 11. The same pulse signal is modulated by the M-series code signal generated by the signal generator 2 and is output from an antenna 13. The reflection wave received by antennas 11 and 13 is fed to a mixer 19 via a filter 18 of reception system and a reception gate 20, where it is frequency-converted to a base-band code-modulated pulse signal, is demodulated to each original code signal train without any electric wave interference between the antennas 11 and 13, and then is input to Doppler filters 21 and 22. |
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