专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2006178314A Device for separating and extracting mixed signal 有权
标题翻译：用于分离和提取混合信号的装置
公开(公告)号：JP2006178314A
公开(公告)日：2006-07-06
申请号：JP2004373580
申请日：2004-12-24
申请人： Tech Res & Dev Inst Of Japan Def Agency , Toshiba Corp , 株式会社東芝 , 防衛庁技術研究本部長
发明人： OKUBO YUTAKA , SONODA TOSHIAKI , TEJIMA TETSUO , SUZUKI KUNIO
IPC分类号： G10L21/02 , G10L15/20
摘要： PROBLEM TO BE SOLVED: To provide a device for separating/extracting a mixed signal capable of reproducing an original signal continuously and faithfully.
SOLUTION: The device for separating/extracting a mixed signal obtains signal separation outputs XA (XA
1 , ..., XA
i ) and XB (XB
1 , ..., XB
i ) by performing separation/extraction processing by an independent component analysis of each two continuous sampling periods Δt1, Δt2. Further, the device produces a signal separation output XC (XC
1 , ..., XC
i ) in Δt1+Δt2, and divides XC into a component (XA') corresponding to the period Δt1 and a component (XB') corresponding to Δt2. Then, the device calculates combinations to couple each component of (XA
1 , ..., XA
i ) to any of the components (XB
1 , ..., XB
i ) based on a correlation value between XA and XA', and that between XB and XB'.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于分离/提取能够连续且忠实地再现原始信号的混合信号的装置。解决方案：用于分离/提取混合信号的装置获得信号分离输出XA（XA 1 ，...，XA i ）和XB（XB 1，...，XC i ），并将XC分割成分量（XA'）对应于周期Δt1和对应于Δt2的分量（XB'）。然后，设备计算组合以将（XA 1 ，...，XA i ）的每个分量耦合到任何分量（XB 1 i 。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005091373A Frequency analysis device 有权
标题翻译：频率分析装置
公开(公告)号：JP2005091373A
公开(公告)日：2005-04-07
申请号：JP2004333622
申请日：2004-11-17
申请人： Mitsubishi Electric Corp , Tech Res & Dev Inst Of Japan Def Agency , 三菱電機株式会社 , 防衛庁技術研究本部長
发明人： SUZUKI HIDEKI , OKUBO YUTAKA
IPC分类号： G01R23/16
CPC分类号： G01S15/8961
摘要： PROBLEM TO BE SOLVED: To provide a frequency analysis device capable of analyzing frequency at high speed by enhancing the resolution of frequency analysis of a received signal and extending the dynamic range. SOLUTION: This device includes a code n phase modulation means 13 for phase-modulating a down-chirp signal with a code with low correlation; a means 2 for mixing a measuring signal reduced to an intermediate frequency with the down-chirp signal after code n phase modulation; a band filter means 4 for obtaining an up-chirp signal having frequency components of the difference signal of the mixing means; a means 14 for delaying the up-chirp signal so that the lower frequency component has the larger delay quantity, adding signals of each frequency component, and correlating them by moving the code at the same timing of input of the up-chirp signal with the same code as the code n phase modulation to obtain a compressed intermittent wave when the up-chirp signal is inputted and the code and the delay quantity are matched; and means 6 and 7 for detecting the intermittent wave to determine a sampling function, and transforming the time of the main lobe of the curve by a frequency-time table to obtain an input frequency. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够通过提高接收信号的频率分析的分辨率并延长动态范围来高速分析频率的频率分析装置。解决方案：该装置包括用于以相关性低的码相位调制下线性调频信号的码n相位调制装置13; 一个装置2，用于将经缩减为中频的测量信号与码n相位调制后的下线性调频信号相混合; 带通滤波器装置4，用于获得具有混频装置的差分信号的频率分量的上升线性调频信号; 用于延迟上升线性调频信号的装置14，使得较低频率分量具有较大的延迟量，加上每个频率分量的信号，并通过在与上述线性调频信号的输入相同的定时移动代码来对其进行相关，与代码n相位调制相同的代码，以便在输入上线啁啾信号并且代码和延迟量匹配时获得压缩的间歇波; 以及用于检测间歇波以确定采样功能的装置6和7，以及通过频率 - 时间表来变换曲线的主瓣的时间以获得输入频率。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2003004779A Method and apparatus for analyzing frequency 有权
标题翻译：分析频率的方法和装置
公开(公告)号：JP2003004779A
公开(公告)日：2003-01-08
申请号：JP2001191398
申请日：2001-06-25
申请人： Mitsubishi Electric Corp , Tech Res & Dev Inst Of Japan Def Agency , 三菱電機株式会社 , 防衛庁技術研究本部長
发明人： SUZUKI HIDEKI , OKUBO YUTAKA
IPC分类号： G01R23/16 , G01R23/14 , G01R23/173
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus for the analysis of a frequency, where the frequency of a received signal is analyzed with high resolution, a dynamic range is widened and the frequency can be analyzed at a high speed.
SOLUTION: In frequency analytical method, a signal which comprises the frequency components of a difference signal between a signal to be measured and a chirp signal whose frequency is changed in accordance with time is found, it is delayed by a delay amount according to the frequency components so as to be changed into compressed intermittent waves, the intermittent waves are detected for finding a sampling function, the time in which the main lobe of a sampling function curve appears is converted from a frequency-time table, and an input frequency is decided. The main lobe is detected easily and precisely by suppressing the appearance of unwanted side lobe in the sampling function curve, by correction of the sampling function or by a combination of an up-chirp signal and a down-chirp signal.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了提供用于分析频率的方法和装置，其中以高分辨率分析接收信号的频率，扩大动态范围，并且可以高速度地分析频率。解决方案：在频率分析方法中，发现包括待测信号和频率根据时间变化的线性调频脉冲信号之间的差分信号的频率分量的信号，根据频率延迟延迟量将其变成压缩间歇波，检测间歇波，以求出采样功能，从频率表中转换出采样函数曲线的主瓣的时间，并且决定输入频率。通过采样功能曲线的校正或通过上升线性调频信号和下降线性调频信号的组合来抑制取样函数曲线中不想要的旁瓣的出现，容易且准确地检测主瓣。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式