论文部分内容阅读
一、引言 利用粒子群对光辐射的吸收、散射,测量其粒径及分布,具有快速、非接触、容易实现自动化等优点,因此在水文、气象、医药医疗、环保、动力、建材、化工和食品等领域,有着广泛的应用前景。辐射测量颗粒粒径的研究包括两部分内容:(1)测量设备和技术;(2)反演粒径分布的辐射反问题方法。近十几年来,国外在这方面的研究发展很快,提出了不少反演粒径分布的反问题方法,例如:PhilIips-Twomey法,Backus-Gilbert法,非线性反
I. INTRODUCTION The use of particle swarm to absorb and scatter light radiation and to measure its particle size and distribution has the advantages of fast, non-contact and easy automation. Therefore, it is of great importance in hydrology, meteorology, medical and medical care, environmental protection, power, building materials, chemicals and Food and other fields, has a wide range of applications. Radiation measurement Particle size studies include two parts: (1) measurement equipment and techniques; (2) inverse particle size distribution of the inverse problem of radiation. In recent ten years, the overseas research on this area has been developed rapidly, and many inverse problem methods for the inversion of particle size distribution have been proposed. For example, the PhilIips-Twomey method, the Backus-Gilbert method, the nonlinear inverse