公开(公告)号：US20090129487A1

公开(公告)日：2009-05-21

申请号：US12269615

申请日：2008-11-12

申请人： Shrenik Deliwala

发明人： Shrenik Deliwala

IPC分类号： H04L27/00

CPC分类号： G01S17/32 ,  G01S7/35 ,  G01S7/491 ,  G01S7/4911 ,  G01S7/4912 ,  G01S13/325

摘要： Transmitter signals are modulated with one or more codes which may represent a pulse even though the code(s) are not shaped as pulses. The code(s) may be generated by defining a pulse by its Fourier components, and then adding random phases to the Fourier components. A time-domain signal may then be created, which may serve as the code to be modulated on a carrier wave. Upon reflection of the transmitter signal, the received signal may be processed by a receiver to recover the pulse. The time-of-flight of the transmitter signal can then be determined, enabling distance measurements to be made.

摘要翻译： 发射机信号用一个或多个代码进行调制，即使代码未被形成为脉冲，也可以表示脉冲。 可以通过其傅立叶分量定义脉冲，然后将随机相位加到傅立叶分量来生成代码。 然后可以创建时域信号，其可以用作要在载波上调制的代码。 在发射机信号反映之后，接收到的信号可以被接收机处理以恢复脉冲。 然后可以确定发射机信号的飞行时间，使得能够进行距离测量。

公开(公告)号：US20090079617A1

公开(公告)日：2009-03-26

申请号：US12200024

申请日：2008-08-28

申请人： Kazuo SHIRAKAWA ,  Katsuyuki OHGUCHI ,  Yasuyuki KONDO

发明人： Kazuo SHIRAKAWA ,  Katsuyuki OHGUCHI ,  Yasuyuki KONDO

IPC分类号： G01S13/08 ,  G01S5/02

CPC分类号： G01S13/325 ,  G01S7/032 ,  G01S13/34 ,  G01S13/87 ,  G01S13/931 ,  G01S2013/0254

摘要： In a detection and ranging apparatus that performs direction-of-arrival estimation using a sensor array and that enlarges an effective aperture using a plurality of transmitting sensors, adverse effects associated with time division switching are eliminated, achieving high-accuracy measurement. A transmitter wave is spread in modulators by using mutually orthogonal codes, and the resulting transmitter waves are radiated from two transmitting sensors. Signals received by receiving sensors are each split by a splitter into two parts, which are then respectively despread in a demodulator by using the same codes as those used in the transmitter.

摘要翻译： 在使用传感器阵列执行到达方向估计并且使用多个发送传感器来扩大有效孔径的检测和测距装置中，消除了与时分切换相关的不利影响，从而实现高精度测量。 发射机波通过使用相互正交的码在调制器中扩展，并且所得到的发射机波从两个发射传感器辐射。 由接收传感器接收的信号分别分成两部分，然后分别在解调器中使用与发射机中使用的相同的代码进行解扩。

公开(公告)号：US20080272957A1

公开(公告)日：2008-11-06

申请号：US12148858

申请日：2008-04-22

申请人： Thomas Schoeberl

发明人： Thomas Schoeberl

IPC分类号： G01S13/58

CPC分类号： G01S13/584 ,  G01S7/032 ,  G01S7/35 ,  G01S13/325

摘要： A method and a device are provided for determining the relative velocity of objects by using transmitted and received microwave radiation. The transmission signal has a carrier frequency which is increased or decreased in a ramp-like manner, and the transmission signal is additionally modulated using a PN code sequence. The reception signal is mixed using the time-delayed PN code sequence and integrated to form a complex correlation gain. The relative velocity of the objects is determined from the variation over time of the correlation result for the mixed and integrated reception signals, and optionally, the distance of the objects is determined from the time delay of the PN code sequence.

摘要翻译： 提供了一种通过使用发射和接收的微波辐射来确定物体的相对速度的方法和装置。 发送信号具有以斜坡状方式增加或减少的载波频率，并且使用PN码序列附加地调制发送信号。 接收信号使用时间延迟的PN码序列进行混合并积分形成复相关增益。 物体的相对速度是根据混合和积分的接收信号的相关结果随时间的变化来确定的，并且可选地，根据PN码序列的时间延迟确定对象的距离。

公开(公告)号：US20070077888A1

公开(公告)日：2007-04-05

申请号：US11514682

申请日：2006-08-31

申请人： Ian Forster

发明人： Ian Forster

IPC分类号： H04B7/00

CPC分类号： G06K7/10346 ,  G01S13/003 ,  G01S13/325 ,  G01S13/756 ,  G01S13/758 ,  G01S13/878 ,  G06K7/0008 ,  G06K7/10079 ,  G06K7/10316 ,  G06K17/0022

摘要： The present invention relates to a reflective communication system that allows information from wireless communication devices, such as radio-frequency identification devices (RFID), to be reflectively communicated to a receiver in lieu of using a separate communication system. A transmitter transmits a communication signal, having a carrier frequency, to the wireless communication device to provide power. The wireless communication device modulates a data signal onto the communication signal to form a reflected data signal. The wireless communication device reflects the reflected data signal directly to the receiver. In this manner, the process of communicating information from a wireless communication device is accomplished in one communication system rather than two. If the receiver also directly receives the communication signal from the transmitter, the receiver can determine the location of the wireless communication device relative to the transmitters.

摘要翻译： 本发明涉及一种反射通信系统，其允许来自诸如射频识别设备（RFID）的无线通信设备的信息被反射地传送到接收机，而不是使用单独的通信系统。 发射机将具有载波频率的通信信号发送到无线通信设备以提供电力。 无线通信设备将数据信号调制到通信信号上以形成反射数据信号。 无线通信设备将反射的数据信号直接反映到接收机。 以这种方式，在一个通信系统中而不是两个通信系统中实现了从无线通信设备传送信息的过程。 如果接收机也直接从发射机接收到通信信号，则接收机可以确定无线通信设备相对于发射机的位置。

公开(公告)号：US07023377B2

公开(公告)日：2006-04-04

申请号：US10473816

申请日：2002-03-22

申请人： Sune Axelsson

发明人： Sune Axelsson

IPC分类号： G01S13/42

CPC分类号： G01S13/325 ,  G01S13/584 ,  G01S13/87

摘要： The invention relates to remote distance measurement by means of a transmitted noise modulated probing signal (E), whereby at least one of a distance (Y(t)) and a velocity (V(t)) in relation to a signal transceiver (200) is determined. The probing of signal (E) is generated on basis of at least one first noise signal (x1(t), x2(t)). The transmitted signal (E) is presumed to be reflected to the signal transceiver (200) via at least one signal reflecting object in the form of an information carrying signal (e). This signal thus constitutes a delayed and possibly doppler shifted version of the transmitted signal (E). Moreover, according to the invention, a second noise signal (x2(t)) is added either to the probing signal (E) before it is transmitted or to the information carrying signal (e) before information pertaining to the reflecting object is derived there from. A primary signal (P1(x1)) is generated, which is based on the first noise signal (x1(t)) and a secondary signal (P2(x1, x2)) is generated, which is based on the information carrying signal (e). Thanks to the contribution from the second noise signal (x2(t)) the subsequent signal processing of the primary signal (P1(x1) and the secondary signal (P2(x1, x2)) can be performed with a high linearity at the same time as a comparatively simple equipment can be can be utilized for digitizing (240) signal components (SI, SQ; RI, RQ), which have been demodulated from the primary signal (P1(x1)) and the secondary signal (P2(x1, x2)) respectively. The solution according to the invention is also applicable at remote distance measurement by means of a digital group antenna system.

公开(公告)号：US20050180491A1

公开(公告)日：2005-08-18

申请号：US11059332

申请日：2005-02-17

申请人： Masaki Hiromori

发明人： Masaki Hiromori

IPC分类号： G01S13/26 ,  G01S7/40 ,  G01S13/02 ,  G01S13/32 ,  G01S13/93 ,  H04B1/707

CPC分类号： G01S7/4004 ,  G01S13/0209 ,  G01S13/325 ,  H04B1/7163

摘要： A radar apparatus has a code generator, a transmission section, a reception section, a delay section, a despreading processor, a correlation value detector, a target detector, and an adjustment section. The transmission section transmits a signal modulated with a spectrum spread code. The reception section receives a direct wave from the transmission section and a reflection wave of the transmitted signal from a target. The delay section delays the despread code-stepwise. The despreading processor performs a despreading processing with respect to a signal obtained from the reflection wave received, with using the despread code delayed. The correlation value detector detects a correlation value from data output from the despreading processor. The adjustment section adjusts a phase shift between the spectrum spread code and the despread code so that a correlation strength of the direct wave is equal to or larger than a predetermined value.

摘要翻译： 雷达装置具有码发生器，发送部，接收部，延迟部，解扩处理器，相关值检测器，目标检测器和调整部。 发送部发送用频谱扩展码调制的信号。 接收部接收来自发送部的直接波和来自目标的发送信号的反射波。 延迟部分逐步延迟解扩码。 解扩处理器利用被延迟的解扩码，对从所接收的反射波获得的信号进行解扩处理。 相关值检测器从解扩处理器输出的数据检测相关值。 调整部分调节频谱扩展码和解扩码之间的相移，使得直接波的相关强度等于或大于预定值。

公开(公告)号：US20050146706A1

公开(公告)日：2005-07-07

申请号：US10503212

申请日：2002-12-27

申请人： Shumpei Kameyama ,  Yoshihito Hirano ,  Kimino Asaka ,  Toshiyuki Ando ,  Atsushi Okamura ,  Toshio Wakayama ,  Hiroshi Sakamaki

发明人： Shumpei Kameyama ,  Yoshihito Hirano ,  Kimino Asaka ,  Toshiyuki Ando ,  Atsushi Okamura ,  Toshio Wakayama ,  Hiroshi Sakamaki

IPC分类号： G01S7/481 ,  G01S13/32 ,  G01S17/32 ,  G01S17/58 ,  G01S13/00 ,  G01P3/36

CPC分类号： G01S17/58 ,  G01S7/4818 ,  G01S13/325 ,  G01S17/32

摘要： A laser radar apparatus includes a mixer 12 for converting the frequency of an electric signal outputted from a photodetector 11 into a baseband frequency by using a modulating signal generated by an oscillator 2. The laser radar apparatus carries out a coherent integral of the electric signal whose frequency has been converted by the mixer 12, and measures the quality of scatterers which exist in the atmosphere from a result of the integral. As a result, even when the S/N ratio of the light signal received by a receiving optical unit 8 is low, the laser radar apparatus can detect the quality of the scatterers.

摘要翻译： 激光雷达装置包括：混合器12，用于通过使用由振荡器2产生的调制信号将从光电检测器11输出的电信号的频率转换为基带频率。激光雷达装置执行电信号的相干积分， 频率已经由混合器12转换，并且从积分的结果测量存在于大气中的散射体的质量。 结果，即使当由接收光学单元8接收的光信号的S / N比低时，激光雷达装置也可以检测散射体的质量。

公开(公告)号：US06822605B2

公开(公告)日：2004-11-23

申请号：US10221072

申请日：2002-11-08

申请人： Thomas Brosche

发明人： Thomas Brosche

IPC分类号： G01S1332

CPC分类号： G01S7/282 ,  G01S7/023 ,  G01S13/325 ,  G01S13/931

摘要： A radar device is described having means (12) for generating a first code, means (18) for modulating a transmission signal in a transmitting branch using the first code, means (32) for delaying the first code, means (20) for modulating a signal in a receiving branch using the delayed first code, and means for mixing a reference signal with a reception signal, multiple receiving channels (111, 112, . . . 11k) being provided, the receiving channels (111, 112, . . . 11k) having means (1201, 1202, . . . 120k) for generating additional codes (C1, C2, . . . Ck), the receiving channels (111, 112, . . . 11k) having means (131, 132, . . . 13k) for demodulating using the respective additional codes (C1, C2, . . . Ck), and means (15) being provided for modulating the transmission signal using at least one of the additional codes (C1, C2, . . . Ck). A method which may be implemented advantageously using the radar device described is also described.

摘要翻译： 一种雷达设备被描述为具有用于产生第一代码的装置（12），用于使用第一代码调制发送分支中的传输信号的装置（18），用于延迟第一代码的装置（32），用于调制的装置（20） 使用延迟的第一代码的接收分支中的信号，以及用于混合参考信号与接收信号的装置，提供多个接收信道（111,112，...，11k），所述接收信道（111,112，...） 具有用于产生附加代码（C1，C2，... Ck）的装置（1201,1202,1 ... 120k）的接收通道（111,112，...，11k）具有装置（131,132k） 用于使用各个附加代码（C1，C2 ... Ck）进行解调的装置（15），以及用于使用附加代码（C1，C2，...）中的至少一个来调制发送信号的装置（15） Ck）。 还描述了可以使用所描述的雷达装置有利地实现的方法。

公开(公告)号：US20040178948A1

公开(公告)日：2004-09-16

申请号：US10473816

申请日：2004-05-10

发明人： Sune Axelsson

IPC分类号： G01S013/08

CPC分类号： G01S13/325 ,  G01S13/584 ,  G01S13/87

摘要： The invention relates to remote distance measurement by means of a transmitted noise modulated probing signal (E), whereby at least one of a distance (Y(t)) and a velocity (V(t)) in relation to a signal transceiver (200) is determined. The probing of signal (E) is generated on basis of at least one first noise signal (x1(t), x2(t)). The transmitted signal (E) is presumed to be reflected to the signal transceiver (200) via at least one signal reflecting object in the form of an information carrying signal (e). This signal thus constitutes a delayed and possibly doppler shifted version of the transmitted signal (E). Moreover, according to the invention, a second noise signal (x2(t)) is added either to the probing signal (E) before it is transmitted or to the information carrying signal (e) before information pertaining to the reflecting object is derived there from. A primary signal (P1(x1)) is generated, which is based on the first noise signal (x1(t)) and a secondary signal (P2(x1, x2)) is generated, which is based on the information carrying signal (e). Thanks to the contribution from the second noise signal (x2(t)) the subsequent signal processing of the primary signal (P1(x1) and the secondary signal (P2(x1, x2)) can be performed with a high linearity at the same time as a comparatively simple equipment can be utilized for digitizing (240) signal components (SI, SQ; RI, RQ), which have been demodulated from the primary signal (P1(x1)) and the secondary signal (P2(x1, x2)) respectively. The solution according to the invention is also applicable at remote distance measurement by means of a digital group antenna system.

摘要翻译： 本发明涉及通过发射的噪声调制探测信号（E）的远程距离测量，其中相对于信号收发器（200）的距离（Y（t））和速度（V（t））中的至少一个 ） 决心，决意，决定。 基于至少一个第一噪声信号（x1（t），x2（t））产生信号（E）的探测。 假设所发送的信号（E）经由信息携带信号（e）的形式的至少一个信号反射对象被反射到信号收发器（200）。 因此，该信号构成发射信号（E）的延迟和可能的多普勒偏移版本。 此外，根据本发明，第二噪声信号（x2（t））在其被发送之前被添加到探测信号（E），或者在与反射对象有关的信息被导出之前被添加到信息携带信号（e） 从。 产生基于第一噪声信号（x1（t））和辅助信号（P2（x1，x2））的主信号（P1（x1）），其基于信息携带信号 e）。 由于来自第二噪声信号（x2（t））的贡献，主信号（P1（x1）和次信号（P2（x1，x2））的后续信号处理可以以相同的高线性度执行 作为相对简单的设备的时间可以用于从主信号（P1（x1））解调的数字化（240）信号分量（SI，SQ; RI，RQ）和次信号（P2（x1，x2） ）），根据本发明的解决方案也可以通过数字组天线系统进行远距离测量。

公开(公告)号：US20030184469A1

公开(公告)日：2003-10-02

申请号：US10221072

申请日：2002-11-08

发明人： Thomas Brosche

IPC分类号： G01S007/28

CPC分类号： G01S7/282 ,  G01S7/023 ,  G01S13/325 ,  G01S13/931

摘要： A radar device is described having means (12) for generating a first code, means (18) for modulating a transmission signal in a transmitting branch using the first code, means (32) for delaying the first code, means (20) for modulating a signal in a receiving branch using the delayed first code, and means for mixing a reference signal with a reception signal, multiple receiving channels (111, 112, . . . 11k) being provided, the receiving channels (111, 112, . . . 11k) having means (1201, 1202, . . . 120k) for generating additional codes (C1, C2, . . . Ck), the receiving channels (111, 112, . . . 11k) having means (131, 132, . . . 13k) for demodulating using the respective additional codes (C1, C2, . . . Ck), and means (15) being provided for modulating the transmission signal using at least one of the additional codes (C1, C2, . . . Ck). A method which may be implemented advantageously using the radar device described is also described.

摘要翻译： 一种雷达设备被描述为具有用于产生第一代码的装置（12），用于使用第一代码调制发送分支中的传输信号的装置（18），用于延迟第一代码的装置（32），用于调制的装置（20） 使用延迟的第一代码的接收分支中的信号，以及用于混合参考信号与接收信号的装置，提供多个接收信道（111,112，...，11k），所述接收信道（111,112，...） 具有用于产生附加代码（C1，C2，... Ck）的装置（1201,1202,1 ... 120k）的接收通道（111,112，...，11k）具有装置（131,132k） 用于使用各个附加代码（C1，C2 ... Ck）进行解调的装置（15），以及用于使用附加代码（C1，C2，...）中的至少一个来调制发送信号的装置（15） Ck）。 还描述了可以使用所描述的雷达装置有利地实现的方法。