| 摘要 |
PURPOSE:To enable the removal of a fruits signal without wasting a response signal by inputting a gate signal delayed by two transmitting repetition cycles, a non-delay gate signal and a beacon response signal delayed by one cycle. CONSTITUTION:A bracket pulse detected 1 from a beacon response is delayed with sweep delayers 2 and 3 by two sweeps (transmitting repetition cycle) to generate a first gate signal from a first gate generator 5 while a second gate generator 6 inputs the bracket pulse directly to generate a non-delay second gate signal. When a beacon response is inputted into a fruits removing circuit 7 delayed 4 by one sweep 4, the beacon response is outputted only when it is within time ranges of first and second gate signals inputted from the generators 5 and 6. Thus, a fruits signal is removed while a beacon response signal for query of an own station is outputted completely from a remover 7 thereby enabling the preventing of drops in reading rate, detection rate of a beacon target and a drop in display performance. |
