| 摘要 |
PROBLEM TO BE SOLVED: To highly sensitively receive an external radio wave over a frequency range of a wide band to detect a target, and to analysis-display a frequency spectrum thereof. SOLUTION: In this receiver, receiving systems by super heterodyne tuners 11-1-11-n and sweep detection amplifiers 13-1-13-n for conducting high speed frequency sweep in a narrow band are arrayed plurally, the receiver has a controller 17 for controlling collectively the super heterodyne tuners and the sweep detection amplifiers, and an analysis-display processing means 16 for analysis-displaying a signal, and receives and detects the frequency range of the wide band highly sensitively at high detection probability by dividing the frequency range of the wide band to bear reception therein partially by the respective receiving systems, to display frequency sprecrum analysis.
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