公开(公告)号：US20060104387A1

公开(公告)日：2006-05-18

申请号：US10988764

申请日：2004-11-15

申请人： Zafer Sahinoglu ,  Sinan Gezici ,  Andreas Molisch

发明人： Zafer Sahinoglu ,  Sinan Gezici ,  Andreas Molisch

IPC分类号： H04L27/06

CPC分类号： H04B1/7183

摘要： A method estimates a time of arrival of a signal received in a wireless communication system. An energy in a frame of a received signal is measured to determine a block in the frame, the block representing a coarse time of arrival of the received signal. Multiple time-delayed versions of a template signal are combined with the block of the received signal to select a particular template signal. The particular template signal identifies a particular chip representing a fine time of arrival of the received signal.

摘要翻译： 方法估计在无线通信系统中接收的信号的到达时间。 测量接收信号的帧中的能量以确定帧中的块，该块表示接收信号的粗略到达时间。 模板信号的多个时间延迟版本与接收信号的块组合以选择特定的模板信号。 特定模板信号识别表示接收信号的精确到达时间的特定芯片。

公开(公告)号：US20060209922A1

公开(公告)日：2006-09-21

申请号：US11054318

申请日：2005-02-10

申请人： Zafer Sahinoglu ,  Sinan Gezici

发明人： Zafer Sahinoglu ,  Sinan Gezici

IPC分类号： H04B1/00

CPC分类号： H04B1/7176 ,  H04B1/71637 ,  H04B1/719

摘要： A transmitted reference ultra-wide band communication signal embodied in an electromagnetic wave and configured to communicate a data value includes a first frame having a first reference pulse and a first data pulse. The first reference pulse has a reference polarity and the first data pulse has a data polarity. The first reference pulse is separated from the first reference pulse by a delay time. The reference polarity is set based on a predetermined reference value and a first pseudo-random polarity code sequence, and the data polarity is set based on the data value and a second pseudo-random polarity code sequence. A receiver configured to receive the signal, a transmitter configured to transmit the signal, and a system of transmitters and receivers are also provided.

摘要翻译： 实现在电磁波中并被配置为传送数据值的传输的参考超宽带通信信号包括具有第一参考脉冲和第一数据脉冲的第一帧。 第一参考脉冲具有参考极性，并且第一数据脉冲具有数据极性。 第一参考脉冲与第一参考脉冲相隔延迟时间。 基于预定的参考值和第一伪随机极性代码序列来设定参考极性，并且基于数据值和第二伪随机极性代码序列来设置数据极性。 还提供了被配置为接收信号的接收机，被配置为发送信号的发射机，以及发射机和接收机系统。

公开(公告)号：US20090195456A1

公开(公告)日：2009-08-06

申请号：US12026707

申请日：2008-02-06

申请人： Sinan Gezici ,  Zafer Sahinoglu

发明人： Sinan Gezici ,  Zafer Sahinoglu

IPC分类号： G01S1/24

CPC分类号： G01S5/0221 ,  G01S11/02

摘要： A method estimates a delay in a time of arrival (TOA) of a transmitted signal by receiving the transmitted signal at multiple antennas via corresponding channels. Each received signal is correlated with the transmitted signal to obtain estimated channel coefficients and an estimated TOA. A variance of noise is also obtained for each received signal. A weight is determined for each received signal by dividing the channel coefficients by the variance of the noise. The weights are summed, and each weight is multiplied by the estimated TOA to produce a weighted estimated TOA, which are also summed. The summed weighted estimated TOA are divided by the summed weights to determine a final TOA estimate with respect to the transmitted signal.

摘要翻译： 一种方法通过经由相应的信道在多个天线处接收发射信号来估计发射信号的到达时间（TOA）的延迟。 每个接收到的信号与发送的信号相关，以获得估计的信道系数和估计的TOA。 每个接收信号也可以获得噪声的方差。 通过将信道系数除以噪声的方差来确定每个接收信号的权重。 将权重相加，并且将每个权重乘以估计的TOA以产生加权估计TOA，其也相加。 将相加的加权估计TOA除以相加的权重以确定相对于发送信号的最终TOA估计。

公开(公告)号：US07436909B2

公开(公告)日：2008-10-14

申请号：US10988764

申请日：2004-11-15

申请人： Zafer Sahinoglu ,  Sinan Gezici ,  Andreas F. Molisch

发明人： Zafer Sahinoglu ,  Sinan Gezici ,  Andreas F. Molisch

IPC分类号： H04L27/06

CPC分类号： H04B1/7183

摘要： A method estimates a time of arrival of a signal received in a wireless communication system. An energy in a frame of a received signal is measured to determine a block in the frame, the block representing a coarse time of arrival of the received signal. Multiple time-delayed versions of a template signal are combined with the block of the received signal to select a particular template signal. The particular template signal identifies a particular chip representing a fine time of arrival of the received signal.

摘要翻译： 方法估计在无线通信系统中接收的信号的到达时间。 测量接收信号的帧中的能量以确定帧中的块，该块表示接收信号的粗略到达时间。 模板信号的多个时间延迟版本与接收信号的块组合以选择特定的模板信号。 特定模板信号识别表示接收信号的精确到达时间的特定芯片。

公开(公告)号：US07729407B2

公开(公告)日：2010-06-01

申请号：US11054318

申请日：2005-02-10

申请人： Zafer Sahinoglu ,  Sinan Gezici

发明人： Zafer Sahinoglu ,  Sinan Gezici

IPC分类号： H04B1/00

CPC分类号： H04B1/7176 ,  H04B1/71637 ,  H04B1/719

摘要： A transmitted reference ultra-wide band communication signal embodied in an electromagnetic wave and configured to communicate a data value includes a first frame having a first reference pulse and a first data pulse. The first reference pulse has a reference polarity and the first data pulse has a data polarity. The first reference pulse is separated from the first reference pulse by a delay time. The reference polarity is set based on a predetermined reference value and a first pseudo-random polarity code sequence, and the data polarity is set based on the data value and a second pseudo-random polarity code sequence. A receiver configured to receive the signal, a transmitter configured to transmit the signal, and a system of transmitters and receivers are also provided.

摘要翻译： 实现在电磁波中并被配置为传送数据值的传输的参考超宽带通信信号包括具有第一参考脉冲和第一数据脉冲的第一帧。 第一参考脉冲具有参考极性，并且第一数据脉冲具有数据极性。 第一参考脉冲与第一参考脉冲相隔延迟时间。 基于预定的参考值和第一伪随机极性代码序列来设定参考极性，并且基于数据值和第二伪随机极性代码序列来设置数据极性。 还提供了被配置为接收信号的接收机，被配置为发送信号的发射机，以及发射机和接收机系统。

公开(公告)号：US07539267B2

公开(公告)日：2009-05-26

申请号：US10923481

申请日：2004-08-20

申请人： Zafer Sahinoglu ,  Sinan Gezici

发明人： Zafer Sahinoglu ,  Sinan Gezici

IPC分类号： H04L27/00

CPC分类号： H04B1/71632 ,  H04B1/71635 ,  H04B1/719

摘要： A method signals in an ultra-wide bandwidth network. A data symbol is generated. A set of reference pulses is transmitted for the data symbol. Each reference pulse is of a different type. One data pulse is also transmitted for each reference pulse. A type of each data pulse is identical to the type of the corresponding reference pulse.

摘要翻译： 一种在超宽带宽网络中的信号。 生成数据符号。 为数据符号发送一组参考脉冲。 每个参考脉冲是不同类型的。 每个参考脉冲也发送一个数据脉冲。 每种数据脉冲的类型与相应参考脉冲的类型相同。

公开(公告)号：US20080055157A1

公开(公告)日：2008-03-06

申请号：US11514524

申请日：2006-09-01

申请人： Zafer Sahinoglu ,  Sinan Gezici

发明人： Zafer Sahinoglu ,  Sinan Gezici

IPC分类号： G01S3/02

CPC分类号： G01S13/003 ,  G01S5/04 ,  G01S7/003 ,  G01S13/878 ,  G01S2013/466 ,  G01S2013/468

摘要： A method and system detects a target in a cooperative passive radar system. In each of multiple passive sensors, signals are detected that emanate from a target. Information is extracted from the signals and broadcast to other passive sensors. The sensors update parameters according to the information to improve a likelihood of receiving the signals and to increase a probability of detecting the target. The information is also transmitted to a central processor. The central processor determines a position of the target.

摘要翻译： 一种方法和系统检测协作无源雷达系统中的目标。 在多个无源传感器的每一个中，检测到从目标发出的信号。 从信号中提取信息并广播到其他无源传感器。 传感器根据信息更新参数，以提高接收信号的可能性并增加检测目标的可能性。 该信息也被发送到中央处理器。 中央处理器确定目标的位置。

公开(公告)号：US07327314B2

公开(公告)日：2008-02-05

申请号：US10970642

申请日：2004-10-20

申请人： Sinan Gezici ,  Zafer Sahinoglu

发明人： Sinan Gezici ,  Zafer Sahinoglu

IPC分类号： G01S3/02

CPC分类号： H04W56/0075

摘要： A method estimates a distance between transceivers in a wireless communications network. A first time interval T is set in a transmitter and a receiver. A signal is transmitted from the transmitter to the receiver at a time t2 according to a first clock of the transmitter. The signal is received in the receiver at a time t3. Processing delays of the receivers are determined. A reply to the signal is sent from the receiver to the transmitter at a time t6 such that |t3−t6|=T. The reply is received in the transmitter at a time t7 of the first clock and a distance d between the transmitter and the receiver is determined according to d=c(|t2−t7|−T)/2, where c is the speed of light.

摘要翻译： 一种方法估计无线通信网络中的收发器之间的距离。 在发射机和接收机中设置第一时间间隔T. 根据发射机的第一时钟，信号在时间t 2从发射机发射到接收机。 该信号在时间t 3 3接收在接收器中。 确定接收机的处理延迟。 在时间t 6时，对信号的响应从接收器发送到发射机，使得| t 3→T 6 | = T 。 在第一时钟的时间t 7处，在发射机中接收到应答，并且根据d = c（| t 2）确定发射机和接收机之间的距离d -T）/ 2，其中c是光速。

公开(公告)号：US07817091B2

公开(公告)日：2010-10-19

申请号：US12026707

申请日：2008-02-06

申请人： Sinan Gezici ,  Zafer Sahinoglu

发明人： Sinan Gezici ,  Zafer Sahinoglu

IPC分类号： G01S1/24

CPC分类号： G01S5/0221 ,  G01S11/02

摘要： A method estimates a delay in a time of arrival (TOA) of a transmitted signal by receiving the transmitted signal at multiple antennas via corresponding channels. Each received signal is correlated with the transmitted signal to obtain estimated channel coefficients and an estimated TOA. A variance of noise is also obtained for each received signal. A weight is determined for each received signal by dividing the channel coefficients by the variance of the noise. The weights are summed, and each weight is multiplied by the estimated TOA to produce a weighted estimated TOA, which are also summed. The summed weighted estimated TOA are divided by the summed weights to determine a final TOA estimate with respect to the transmitted signal.

摘要翻译： 一种方法通过经由相应的信道在多个天线处接收发射信号来估计发射信号的到达时间（TOA）的延迟。 每个接收到的信号与发送的信号相关，以获得估计的信道系数和估计的TOA。 每个接收信号也可以获得噪声的方差。 通过将信道系数除以噪声的方差来确定每个接收信号的权重。 将权重相加，并且将每个权重乘以估计的TOA以产生加权估计TOA，其也相加。 将相加的加权估计TOA除以相加的权重以确定相对于发送信号的最终TOA估计。

公开(公告)号：US07403157B2

公开(公告)日：2008-07-22

申请号：US11520418

申请日：2006-09-13

申请人： Sinan Gezici ,  Zafer Sahinoglu ,  Jinyun Zhang

发明人： Sinan Gezici ,  Zafer Sahinoglu ,  Jinyun Zhang

IPC分类号： G01S1/24

CPC分类号： G01S5/10 ,  G01S5/0215 ,  G01S5/0221 ,  G01S13/003 ,  G01S13/878

摘要： A method determines a position of a target object. A window function is applied repeatedly to a first signal and a second signal of a pair of radio signals received at a pair of passive sensors from a target object while time shifting the window function during a correlation interval to produce a first windowed signal and a second windowed signal for each application. The first windowed signals are cross-correlating with the second windowed signals to determine a peak for each cross-correlation. The peaks are compared sequentially in time with a predetermined threshold to detect a first pulse in the first signal and a first pulse in the second signal. A delay between the first pulses indicative of a position of the target object.

摘要翻译： 方法确定目标对象的位置。 在相关间隔期间对窗函数进行时间偏移以产生第一窗口信号和第二窗口信号的情况下，对来自目标对象的一对无源传感器接收的一对无线电信号的第一信号和第二信号重复施加窗函数， 每个应用程序的窗口信号。 第一窗口信号与第二窗口信号互相关，以确定每个互相关的峰值。 峰值按时间顺序地与预定阈值进行比较，以检测第一信号中的第一脉冲和第二信号中的第一脉冲。 表示目标对象的位置的第一脉冲之间的延迟。