发明名称 |
Video processor for distance measuring equipment |
摘要 |
A video processor for Distance Measuring Equipment in which all timing functions including fixed delays are performed by digital counters counting clock pulses from a highly stable source. Search and track operations are conducted by starting a memory counter by a reply from a responser and stopping the memory counter at a time corresponding to maximum range. On a succeeding interrogation cycle the memory counter is started prior to the time a reply at zero range would be received. In this cycle the memory counter begins count with the count it contained when stopped during the previous cycle; the memory counter counts until it reaches a number corresponding to maximum range, stops and initiates a range gate. A reply within the range gate causes the range gate to be repeated at the same time in the following interrogation cycle. A sufficient number of replies within the range gate cause tracking operation to begin. A velocity memory provides continuing tracking during temporary loss of reply signals.
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申请公布号 |
US4124850(A) |
申请公布日期 |
1978.11.07 |
申请号 |
US19770804415 |
申请日期 |
1977.06.07 |
申请人 |
THE BENDIX CORPORATION |
发明人 |
FRAZIER, JR., RICHARD V.;LEVENSON, TONY |
分类号 |
G01S13/16;G01S13/78;(IPC1-7):G01S9/02;G01S9/56 |
主分类号 |
G01S13/16 |
代理机构 |
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代理人 |
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地址 |
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