A pulse sequence compression encoding method and device
A pulse sequence, compression coding technology, applied in the direction of error correction/detection using linear codes, error correction/detection using block codes, data representation error detection/correction, etc., can solve the waste of resources, low energy efficiency ratio, large time Cost and hardware consumption and other issues, to achieve the effect of simple and convenient operation and avoid distortion
Active Publication Date: 2021-01-29
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Currently limited by the low detection efficiency of the sensor detection unit, the output information density of the sensor imaging is often less than 50%, which causes excessive time cost and hardware consumption for its subsequent high-level processing, resulting in waste of resources and low energy efficiency ratio
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[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0028] The first aspect of the present invention provides a pulse sequence compression encoding method, see figure 1 , the method includes: S1, dividing the pulse sequence into multiple groups according to the number of effective pulse signals and the number of detection moments of the pulse sequence, the first group, the second group, ..., the Nth group from the beginning of the pulse sequence; S2, counting the number of effective pulse signals in the first group, and recording them in the reservoir to form a reservoir count value, if the reservoir count value is greater than zero, a pulse signal is generated in the compressed coding sequence, Simultaneously, the counting value of the reservoir is subtracted by 1; S3, co...
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A pulse sequence compression encoding method and device, the method includes: S1, divide the pulse sequence into multiple groups according to the number of effective pulse signals and the number of detection times of the pulse sequence, the first group from the beginning of the pulse sequence, the second group, ..., the Nth group; S2, count the number of effective pulse signals in the first group, and record them in the reservoir to form the reservoir count value, if the reservoir count value is greater than zero, then in A pulse signal is generated in the compression coding sequence, and the count value of the reservoir is decremented by 1 at the same time; S3, the number of effective pulse signals in the second group is counted, and it is accumulated with the count value of the reservoir in step S2. If the count value of the reservoir is greater than zero, a pulse signal will be generated in the compressed coding sequence, and the count value of the reservoir will be reduced by 1. In this way, the compressed coding of the third group, ... the Nth group is completed in sequence. It can make the pulse sequence density after compression coding close to 100%, and improve the subsequent signal processing and the working speed of the system.
Description
technical field [0001] The invention relates to the technical field of digital signal processing, in particular to a pulse sequence compression encoding method and device. Background technique [0002] At present, more and more sensors use pulses as output signals to represent the presence or absence of information with 1 / 0 digital signals, and have many unique properties. For example, single photon avalanche diode (SPAD) sensors can detect several photon orders of magnitude. The two-dimensional space plane light intensity distribution and the three-dimensional space distance information, with 1 / 0 representing the occurrence of an avalanche, have great application prospects in the fields of lidar, three-dimensional imaging, and automatic driving. Currently limited by the low detection efficiency of the sensor detection unit, the output information density of the sensor imaging is often less than 50%, which causes excessive time cost and hardware consumption for its subsequen...
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IPC IPC(8): H03M13/13
Inventor 杨旭于双铭朱文平刘力源吴南健
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI