公开(公告)号：US11474412B2

公开(公告)日：2022-10-18

申请号：US17432425

申请日：2020-04-24

Applicant: TAIYUAN UNIVERSITY OF TECHNOLOGY

Inventor： Pu Li ,  Yuncai Wang ,  Qiang Cai ,  Zhiwei Jia ,  Jianguo Zhang ,  Anbang Wang ,  Mingjiang Zhang

IPC: G02F1/35 ,  G02F1/365 ,  H01S3/00 ,  H01S3/067

Abstract: Disclosed by the present invention is an ultra-wideband white noise source based on a slicing super-continuum spectrum. The entropy source used is a super-continuum spectrum photon entropy source having a coverage range of several hundreds of nm, white noise can thus be generated in a wide frequency range, thereby effectively avoiding the bandwidth bottleneck of an electronic device. By separately adjusting the filter centers of two optical filters, the center frequency for generating the white noise can be adjusted so as to get adapted to different working situations. High bandwidth white noise can be generated by simply filtering the super-continuum spectrum and performing photoelectric conversion, and in comparison with the previous solutions, the solution of the present invention is simpler and can be easily implemented.

公开(公告)号：US11914068B2

公开(公告)日：2024-02-27

申请号：US17471270

申请日：2021-09-10

Applicant: Taiyuan University of Technology

Inventor： Jianguo Zhang ,  Rui Hou ,  Hang Xu ,  Li Liu ,  Zhiwei Jia ,  Yuncai Wang

IPC: G01S7/35 ,  G01S13/32 ,  G01S13/931

CPC classification number: G01S7/35 ,  G01S13/32 ,  G01S13/931

Abstract: The present disclosure relates to a radar ranging system based on a true random generator and a ranging method thereof The present disclosure adopts the following technical scheme: the system comprises a radar signal modulation and transmission unit and a radar signal receiving and processing unit, wherein the radar signal modulation and transmission unit inputs and stores a true random binary sequence generated by the true random generator in a memory, and cyclically outputs the true random binary sequence to a BPSK modulator for phase modulation. The receiving and amplifying unit receives the reflected radar signal. The down-sampling unit down samples the intermediate frequency signal generated by the mixers. The data processing unit converts the sampled analog signal into a digital signal and cross-correlates the signal with the true random binary sequence in the memory, so as to obtain the distance to the object side to be measured.