Patent ID: 8309926
Filing Date: 2012-11-13
Classification: G01S

Abstract:
1. A pulsed-laser beam detector with improved sun and temperature compensation, comprising: a plurality of photo detectors, an ambient temperature sensor, a sun exposure filter and mirroring circuit, a microcontroller unit that comprises pre-stored values in the database and an algorithm-decision logic, a time base circuit that feeds the microcontroller unit, an amplifier with an adjustable gain, a threshold setting circuit, a peak detector circuit, a comparator circuit, and a noise cancellation circuit, wherein, the gain of the amplifier is adjustable to predetermined values, and where said gain depends on the measured values from the plurality of detectors, and the temperature sensor, that are compared with values already stored in the microcontroller unit and subjected to the program logic stored in said microcontroller unit that determines the gain of the amplifier in real time.