公开(公告)号：US20070265786A1

公开(公告)日：2007-11-15

申请号：US11432255

申请日：2006-05-11

申请人： Ahmet Ozdemir ,  Oeyvind Teigen ,  Lars Borgen ,  Vidar Husom

发明人： Ahmet Ozdemir ,  Oeyvind Teigen ,  Lars Borgen ,  Vidar Husom

IPC分类号： G01V1/28

CPC分类号： G01V1/201 ,  G01V1/36 ,  G01V1/3808 ,  G01V2210/3246

摘要： The present invention provides a method and apparatus for seismic data acquisition. One embodiment of the method includes accessing data acquired by at least two particle motion sensors. The data includes a seismic signal and a noise signal and the at least two particle motion sensors being separated by a length determined based on a noise coherence length. The method may also include processing the accessed data to remove a portion of the noise signal.

摘要翻译： 本发明提供了一种用于地震数据采集的方法和装置。 该方法的一个实施例包括访问由至少两个粒子运动传感器获取的数据。 数据包括地震信号和噪声信号，并且所述至少两个粒子运动传感器被分离出基于噪声相干长度确定的长度。 该方法还可以包括处理所访问的数据以去除噪声信号的一部分。

公开(公告)号：US20070103362A1

公开(公告)日：2007-05-10

申请号：US11645318

申请日：2006-12-21

申请人： Orhan Arikan ,  Ahmet Ozdemir

发明人： Orhan Arikan ,  Ahmet Ozdemir

IPC分类号： G01S13/00

CPC分类号： G01S7/295 ,  G01S13/524

摘要： System and method for detection and tracking of targets, which in a preferred embodiment is based on the use of fractional Fourier transformation of time-domain signals to compute projections of the auto and cross ambiguity functions along arbitrary line segments. The efficient computational algorithms of the preferred embodiment are used to detect the position and estimate the velocity of signals, such as those encountered by active or passive sensor systems. Various applications of the proposed algorithm in the analysis of time-frequency domain signals are also disclosed.

公开(公告)号：US20060082491A1

公开(公告)日：2006-04-20

申请号：US11180811

申请日：2005-07-12

申请人： Orhan Arikan ,  Ahmet Ozdemir ,  Donald Gumas

发明人： Orhan Arikan ,  Ahmet Ozdemir ,  Donald Gumas

IPC分类号： G01S13/66

CPC分类号： G01S13/524 ,  G01S13/726

摘要： The present invention relates to active sensor applications, and more particularly is directed to efficient systems and methods for detection and tracking of one or more targets. The invention provides a method for receiving signals reflected from one or more targets, processing the received signals and the transmitted signal to compute two or more slices of the cross ambiguity function associated with the signals, and estimating the signal delay and the Doppler shit associated with the targets from the computed slices.

摘要翻译： 本发明涉及有源传感器应用，更具体地涉及用于检测和跟踪一个或多个目标的有效系统和方法。 本发明提供了一种用于接收从一个或多个目标反射的信号的方法，处理所接收的信号和所发送的信号以计算与该信号相关联的交叉模糊度函数的两个或更多个片段，以及估计与该信号相关联的信号延迟和多普勒 来自计算出的切片的目标。