公开(公告)号：US20090073028A1

公开(公告)日：2009-03-19

申请号：US12191002

申请日：2008-08-13

申请人： Orhan Arikan ,  Ahmet Kemal Ozdemir

发明人： Orhan Arikan ,  Ahmet Kemal 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.

摘要翻译： 目的的检测和跟踪的系统和方法，其在优选实施例中是基于使用时域信号的分数阶傅里叶变换来计算沿着任意线段的自动和交叉模糊函数的投影。 优选实施例的有效计算算法用于检测位置并估计诸如主动或被动传感器系统遇到的信号的速度。 还公开了所提出的算法在时域信号分析中的各种应用。

公开(公告)号：US07317417B2

公开(公告)日：2008-01-08

申请号：US11180811

申请日：2005-07-12

申请人： Orhan Arikan ,  Ahmet Kemal Ozdemir ,  Donald Spyro Gumas

发明人： Orhan Arikan ,  Ahmet Kemal Ozdemir ,  Donald Spyro 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。

公开(公告)号：US07221701B2

公开(公告)日：2007-05-22

申请号：US10265525

申请日：2002-10-07

申请人： Orhan Arikan ,  Ahmet Kemal Ozdemir

发明人： Orhan Arikan ,  Ahmet Kemal Ozdemir

IPC分类号： H04B1/69 ,  H04B1/707 ,  H04B1/713

CPC分类号： H04B1/7115 ,  H04B1/7117 ,  H04B1/712 ,  H04L25/0202 ,  H04L25/0224

摘要： A system and method for spread spectrum communication primarily for use in mobile CDMA communication systems. The system receiver has simplified architecture, comprising a channel compensator and correlation detector. The channel compensator has a channel estimator and signal constructor. In a preferred embodiment, the channel estimator periodically computes the cross-ambiguity function of the transmitted and received pilot signals of the CDMA system using computationally efficient processing algorithms. The signal constructor uses the estimated multipath parameters to construct a new signal on which effects of the multipath channel is considerably mitigated.

摘要翻译： 主要用于移动CDMA通信系统的扩频通信系统和方法。 系统接收机具有简化的架构，包括信道补偿器和相关检测器。 信道补偿器具有信道估计器和信号构造器。 在优选实施例中，信道估计器使用计算有效的处理算法周期性地计算CDMA系统的发送和接收导频信号的交叉模糊度函数。 信号构造器使用估计的多路径参数来构建一个新的信号，在该信号上，多路径信道的效果被大大减轻。