Depolarization Circuit for Accurate Coherent Light Ranging Signals
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Solution Overview
Problem
Conventional laser ranging technologies suffer from poor accuracy due to randomly distributed positive or negative polarities of the output current on the receiving surface, leading to distorted calculation results when summing pixel outputs.
Innovation Solution
A device and method for processing decoherence effect that includes a signal acquisition module to convert coherent light into a first signal with polarity, followed by a processing module to depolarize the signal and obtain a correlation value greater than 0, utilizing components like unidirectional conducting units, class B power amplifiers, and multipliers to ensure consistent polarity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If coherent light is incident on the receiving surface to obtain high power signal, then the signal power is improved, but the output current exhibits randomly distributed positive or negative polarity leading to calculation distortion
Solution Approach 1:
The patent changes the parameter of signal polarity from random distribution to unified positive polarity by introducing a processing module that detects and corrects negative polarity signals. This parameter transformation resolves the contradiction by maintaining high signal power while eliminating polarity-induced calculation distortion.
Solution Approach 2:
The patent replaces the direct summation method with a processing module that implements depolarization through detection and correction mechanisms. This substitution transforms the mechanical addition of signed currents into a controlled process that converts all signals to positive polarity before summation, thereby improving measurement precision without sacrificing signal power.
2Ease of operation
If the output current of each pixel is summed directly to obtain total receiving surface current, then the processing is simple, but the calculation result is distorted due to different polarities
Solution Approach 1:
The patent applies preliminary action by detecting the polarity of each pixel's output current before summation and correcting negative polarity signals to positive. This pre-processing step ensures that all signals have consistent polarity before being summed, thereby improving calculation accuracy while adding minimal complexity to the overall process.
3Measurement precision
If a processing module is added to depolarize the signal and ensure consistent polarity, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The patent introduces an intermediary processing module that acts as a mediator between the receiving surface and the summation process. This module detects polarity and applies correction only when needed, functioning as a smart intermediary that improves measurement precision while minimizing the increase in device complexity through selective intervention rather than complete system redesign.
Data Source
AI summary
A decoherent effect processing device, a decoherent effect processing system, and a method therefor. A circuit comprises a signal acquisition module and a processing module, the output end of the signal acquisition module being connected to the input end of the processing module; the signal acquisition module is configured to acquire coherent light and convert the coherent light into a first signal having polarities; and the processing module is configured to depolarize the first signal to obtain related values of the first signal.