| 摘要 |
1. An apparatus for processing successive video sweeps generated by a radar system and quantized into a series of range bins each including a " 1" or a " 0" representing a target hit or no target hit, respectively, said apparatus comprising means including a memory device having a plurality of channels including 1,2,3, . . . (n-1),n channels for storing n quantized video sweeps from said radar system, n being an integer no less than three, and means for storing active bits and reject bits; means coupled to said memory device and including a read address and a write address for reading from and writing into successive range bins of said plurality of channels in a direction corresponding to increasing ranges; means coupled from said read to said write address for transferring said quantized video from said 1,2,3, . . .(n-1) channels to said 2,3, . . .n channels, respectively; means including a statistical bit detector and a first bi-stable device coupled from said n channels of said read address to said write address for setting said first bi-stable device in response to m "1' s" from the respective range bins of said n channels thereby to generate an active bit at an output thereof, m being an integer less than n; means including a statistical miss detector and a second bistable device, said statistical miss detector being coupled from said n channels of said read address to said first and second bistable devices for resetting said first and second bi-stable devices in response to a predetermined number less than m " 1' s" from the respective range bins of said n channels; means coupled to said write address and responsive to said quantized video sweeps generated by said radar system for setting said second bi-stable device thereby to generate reject bits concurrently with a predetermined number of " 1' s" in a number greater than said predetermined number of successive range bins in no less than one of said quantized video sweeps, and for writing said quantized video into said 1 channel of said n channels; and utilization means responsive to the simultaneous availability of active bits and to the non-availability of reject bits from said read address for processing targets detected by said radar.
|
