公开(公告)号：US20150192665A1

公开(公告)日：2015-07-09

申请号：US14313297

申请日：2014-06-24

Applicant: Electronics and Telecommunications Research Institute ,  Kangnam Industry-Academia Cooperation Foundation

Inventor： Sun Min LIM ,  Kyoung Whoan SUH ,  Jung Ho AHN

IPC: G01S13/02

CPC classification number: G01S7/023 ,  G01S13/282 ,  G01S13/34 ,  G01S13/87

Abstract: This disclosure concerns a method and apparatus of generating a signal from multi-site radars using the same channel. This disclosure provides the method comprising generating a first signal, generating a plurality of time-shifted signals by shifting the first signal by different time shift values, computing correlation values between the first signal and the time-shifted signals, selecting second signals whose correlation values are not more than a threshold from among the time-shifted signals, in a case where two of the second signals are selected, computing a sum of correlation values for all selectable signal combinations, and selecting a signal combination that leads to a minimum sum of correlation values from among the signal combinations.

Abstract translation: 本公开涉及使用相同信道从多站点雷达生成信号的方法和装置。 本公开提供了一种方法，包括：生成第一信号，通过将第一信号移位不同的时移值来产生多个时移信号，计算第一信号和时移信号之间的相关值，选择相关值 在时移信号中不超过阈值，在选择两个第二信号的情况下，计算所有可选信号组合的相关值之和，并且选择导致最小和的最小和的信号组合 信号组合中的相关值。

公开(公告)号：US20140126617A1

公开(公告)日：2014-05-08

申请号：US13777121

申请日：2013-02-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hoi Yoon JUNG ,  Sun Min LIM ,  Jae Hyun PARK ,  Byung Jang JEONG

IPC: H03M7/46

CPC classification number: H03M7/46 ,  H03M7/3062

Abstract: Disclosed are a signal compression apparatus and method for dynamic compressive sensing, including: a signal input unit configured to simultaneously output an input signal, and generate and output a linear measurement reference signal based on the input signal; a linear transform unit configured to receive the linear measurement reference signal and variably generate a linear measurement matrix value according to the linear measurement reference signal; a signal compressor configured to output a compressed signal for the input signal based on the generated linear measurement matrix value; and a signal processor configured to reconstruct the compressed signal and perform spectrum sensing of the input signal. Accordingly, it is possible to increase signal compression efficiency of compressive sensing and improve signal reconstruction performance by using sparsity information of the input signal, and also by performing signal compression by using a compression matrix suitable for the sparsity information of the input signal.

Abstract translation: 公开了一种用于动态压缩感测的信号压缩装置和方法，包括：信号输入单元，被配置为同时输出输入信号，并且基于输入信号生成并输出线性测量参考信号; 线性变换单元，被配置为接收线性测量参考信号，并根据线性测量参考信号可变地生成线性测量矩阵值; 信号压缩器，被配置为基于所生成的线性测量矩阵值输出用于输入信号的压缩信号; 以及信号处理器，被配置为重构所述压缩信号并执行所述输入信号的频谱感测。 因此，可以通过使用输入信号的稀疏信息来提高压缩感测的信号压缩效率并且通过使用适合于输入信号的稀疏信息的压缩矩阵来执行信号压缩来提高压缩感测的信号压缩效率。

公开(公告)号：US20140198836A1

公开(公告)日：2014-07-17

申请号：US13920516

申请日：2013-06-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sun Min LIM ,  Hoi Yoon JUNG ,  Sang Won KIM ,  Byung Jang JEONG

IPC: H04B1/10

CPC classification number: H03M7/3062

Abstract: Disclosed is a method for wideband spectrum sensing using compressive sensing, the method including: acquiring a sampling signal by applying a modulated wideband converter (MWC) to a received signal; and acquiring a restoration signal corresponding to the received signal by using a compressive sensing restoration algorithm from the sampling signal, and a mixing signal multiplied by the received signal at the time of applying the MWC, as a signal transformed from a first mixing signal having a periodic waveform, includes a second mixing signal to remove a partial frequency area from the received signal through the application of the MWC.

Abstract translation: 公开了一种使用压缩感测的宽带频谱感测的方法，该方法包括：通过将调制宽带转换器（MWC）应用于接收信号来获取采样信号; 以及通过使用来自采样信号的压缩感测恢复算法和在应用MWC时乘以接收信号的混合信号来获取与接收信号相对应的恢复信号，作为从具有 周期性波形包括通过应用MWC从接收信号中去除部分频率区域的第二混合信号。