公开(公告)号：WO2017019298A1

公开(公告)日：2017-02-02

申请号：PCT/US2016/041971

申请日：2016-07-13

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.

Inventor： HAIRSTON, Allen W. ,  MADISON, Gary M.

IPC: G01C3/08 ,  G01B9/02 ,  G01C3/02

CPC classification number: G01S7/497 ,  G01S17/105 ,  G01S17/89

Abstract: The invention measures the frequency of a heterodyne laser radar (LADAR) system signal in the input cell of a focal, plane array (FPA). Embodiments amplify the return signal, and drive it into a counter for a fixed period of time. The frequency is the number of counts divided by the count time. An example design amplifier amplifies the return of a single photon response of an avalanche photodiode with a gain of 100 into a digital signal level at a 200 MHz rate with only 84 µW, demonstrating the feasibility of the approach.

Abstract translation: 本发明测量焦平面阵列（FPA）的输入单元中的外差激光雷达（LADAR）系统信号的频率。 实施例放大返回信号，并将其驱动到计数器一段固定的时间。 频率是计数次数除以计数时间。 一个示例设计放大器将具有100增益的雪崩光电二极管的单个光子响应的返回放大到200MHz速率的数字信号电平，仅具有84μW，表明该方法的可行性。