Non-refrigeration infrared focal plane array driving control circuit integration design method

Abstract

The invention relates to a non-refrigeration infrared focal plane array driving control circuit integration design method which aims at overcoming the shortcomings that the existing non-refrigeration infrared focal plane array driving collection and temperature control circuit is complex in design, low in integration level and poor in flexibility. A field programmable gate array (FPGA) is utilized to achieve the non-refrigeration infrared focal plane array driving collection and temperature control circuit. The temperature control circuit enables all detection elements of the infrared focal plane array to be stabilized at reference temperature in the whole working process to improve the detection sensitivity of the infrared focal plane array. The FPGA logic control circuit is the core circuit for achieving driving, collection and temperature control of output signals of the whole infrared focal plane array, provides driving time sequence, collection time sequence and detector temperature control logic configuration time sequence of output signals of an infrared focal plane array detector to further process the follow-up infrared signals. The method has application and popularization value.

Description

technical field [0001] The invention relates to the technical field of thermal imaging of an uncooled infrared focal plane array, and specifically belongs to the design of an infrared focal plane array drive sequence, acquisition sequence and temperature control sequence circuit. Background technique [0002] With the development of infrared detection technology, there are requirements for the accuracy of infrared temperature measurement and the quality of infrared imaging. Since the temperature measurement process of the infrared thermal imaging system will be affected by environmental factors, it is necessary to design a flexible and programmable temperature control circuit to stabilize the infrared detector at a stable temperature value, so as to improve the detection efficiency of the detector. Temperature resolution and detection sensitivity; limited by the readout circuit of the infrared focal plane detector, it is difficult to directly read out high-precision digital ...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides an uncooled infrared focal plane array drive, acquisition and temperature control circuit for the defects that the infrared temperature control circuit in the prior art does not have the ability of repeated programming and the flexibility of the system design is poor.

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