Detector signal processing method and device based on pulse width spectrum

Abstract

The invention discloses a detector signal processing method and device based on a pulse width spectrum. The method comprises the steps that a first pulse width spectrum is collected, and the first pulse width spectrum is used for representing the statistical relation between signals to be detected, on the pulse width of the assigned threshold value, outputted by a detector; according to the corresponding relation between detector input signal energy marked in advance or the output signal amplitude and the output signals on the pulse width of the assigned threshold value, energy information, corresponding to the first pulse width spectrum, of the signals to be detected is determined. The device comprises a pulse width spectrum measurement circuit and a data processing circuit. The detector signal processing method and device have the advantages of being simple in structure, low in design difficulty and cost, easy to maintain, capable of not being lower than a traditional amplitude energy spectrum in performance, and suitable for spacecraft on-track and other application occasions.

Description

technical field [0001] The invention relates to the field of signal detection and signal processing, in particular to a detector signal processing method and device based on pulse width spectrum. Background technique [0002] In the field of high-energy physics, the main research objects are X / γ-rays and various microscopic particles. The main method is to develop corresponding detectors for detection experiments, such as gas detectors, scintillator detectors, and semiconductor detectors. The working principle of these detectors is to convert the energy of incident particles into an output electrical pulse signal, and obtain information such as the type and energy of the detected object by measuring the output electrical pulse signal. In addition to the field of high-energy physics, these detectors and methods have also been widely used in various fields of life, medicine, and industry, such as ion-type smoke alarms, non-destructive testing, and so on. [0003] In the field...

AI Technical Summary

Problems solved by technology

On the one hand, high-precision, high-speed A / D converters are very expensive, and high-performance Flash ADCs are even more expensive. At the same time, in the field of military and aerospace applications, they usually face the difficulty of foreign embargoes, which increases the cost of the entire system. development cost

On the other hand, high-precision, high-speed A / D converter or Flash ADC requires complex peripheral circuit and data readout system design to ensure high sampling rate, high precision and timely data readout, which increases the overall system complexity and difficulty

Therefore, the signal processing method of this detector is relatively complicated, the cost is high, and the design is difficult.

[0004] In addition, with the development of technology and the needs of scientific research, space detection technology has developed rapidly in recent years. More and more spacecraft need to install corresponding detectors and signal processing devices to observe various targets in outer space. If the aforementioned detection If the signal processing device of the spacecraft is applied to the spacecraft, it faces many disadvantages such as high cost, difficult design, and difficult maintenance.

[0005] To sum up, although the existing detector signal processing methods and devices rely on high-performance A / D converters to complete calibration, testing and data processing tasks, they are complex in system, high in cost, difficult in technology, and difficult in maintenance. , and is not suitable for spacecraft in-orbit use and many other shortcomings

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