Multichannel constant envelope orthogonal waveforms using receiver design
    11.
    发明授权
    Multichannel constant envelope orthogonal waveforms using receiver design 有权
    使用接收机设计的多通道恒包络正交波形

    公开(公告)号:US08106813B2

    公开(公告)日:2012-01-31

    申请号:US12694310

    申请日:2010-01-27

    IPC分类号: G01S13/00 H04B17/00

    CPC分类号: G01S7/282 G01S13/106

    摘要: An radar apparatus including a first transmitter, a second transmitter, a first receiver, a second receiver, and a control device. The control device is programmed to use both the characteristics of a first transmit signal from the first transmitter and a second transmit signal from the second transmitter to determine a first control signal for applying to the first receiver to determine its impulse response characteristics, and to determine a second control signal for applying to the second receiver to determine its impulse response characteristics which differ from the first receiver. These control signals have the ability to separate out the first transmit signal and the second transmit signal from their combined sum that appears at the input of the receiver. The procedure can be generalized to include any number of transmit signals and a corresponding number of control signals to separate out the transmit signals from their combined form.

    摘要翻译: 一种包括第一发射机,第二发射机,第一接收机,第二接收机和控制设备的雷达设备。 控制装置被编程为既使用来自第一发射机的第一发射信号的特性和来自第二发射机的第二发射信号,确定用于施加到第一接收机以确定其脉冲响应特性的第一控制信号,并且确定 第二控制信号,用于施加到第二接收机以确定其与第一接收机不同的脉冲响应特性。 这些控制信号具有从出现在接收机的输入端的组合和分离出第一发射信号和第二发射信号的能力。 该过程可以被概括为包括任何数量的发射信号和相应数量的控制信号,以将发射信号从它们的组合形式分离出来。

    Energy—bandwidth tradeoff and transmit waveform design using interference and noise whitening method
    12.
    发明授权
    Energy—bandwidth tradeoff and transmit waveform design using interference and noise whitening method 有权
    使用干扰和噪声增白方法进行能量带宽折中和发射波形设计

    公开(公告)号:US07720132B2

    公开(公告)日:2010-05-18

    申请号:US11681218

    申请日:2007-03-02

    摘要: A new method for transmitter-receiver design that enhances the desired signal output from the receiver by whitening the total interference and noise input to the receiver and maximizing the output Signal to Interference plus Noise power Ratio (SINR) is presented. As a result of the whitening process, the receiver “sees” a desired signal in white noise, and the receiver structure is then optimized to maximize the receiver output at the desired decision making instant. Furthermore the new design scheme proposed here can be used for transmit signal energy and bandwidth tradeoff. As a result, transmit signal energy can be used to tradeoff for “premium” signal bandwidth without sacrificing the system performance level in terms of the output Signal to Interference plus Noise power Ratio (SINR).

    摘要翻译: 一种用于发射机 - 接收机设计的新方法,通过将接收机的总干扰和噪声输入增白,并使输出信号达到干扰加噪声功率比(SINR)来增强从接收机输出的期望信号。 作为白化处理的结果,接收器“看到”白噪声中的期望信号,然后对接收机结构进行优化,以在期望的决策瞬间最大化接收机输出。 此外,这里提出的新设计方案可用于发射信号能量和带宽折衷。 因此,传输信号能量可用于对“溢价”信号带宽进行权衡,而不会在输出信号与干扰加噪声功率比(SINR)方面牺牲系统性能水平。

    Apparatus and method for providing energy—bandwidth tradeoff and waveform design in interference and noise
    13.
    发明授权
    Apparatus and method for providing energy—bandwidth tradeoff and waveform design in interference and noise 有权
    在干扰和噪声中提供能量带宽折衷和波形设计的装置和方法

    公开(公告)号:US07711057B2

    公开(公告)日:2010-05-04

    申请号:US11623965

    申请日:2007-01-17

    CPC分类号: H04L1/0017 G01S7/282

    摘要: A new method for transmitter-receiver design that enhances the desired signal output from the receiver while minimizing the total interference and noise output from the receiver at the desired decision making instant is presented. Further the new design scheme proposed here can be used for transmit signal energy and bandwidth tradeoff. As a result, transmit signal energy can be used to tradeoff for the “premium” signal bandwidth without sacrificing the system performance level in terms of the output Signal to Interference plus Noise power Ratio (SINR). The two designs—the one before and the one after the tradeoff—will result in two different transmitter-receiver pairs that have the same performance level. In many applications such as in telecommunications, since the available bandwidth is at premium, such a tradeoff will result in releasing otherwise unavailable bandwidth at the expense of additional signal energy. The bandwidth so released can be used for other applications or to add additional telecommunication capacity to the system.

    摘要翻译: 提出了一种用于发射机 - 接收机设计的新方法,其增强了从接收机输出的期望信号,同时最小化在所需决策瞬间从接收机的总干扰和噪声输出。 此外,此处提出的新设计方案可用于发射信号能量和带宽折衷。 因此,传输信号能量可用于权衡“优质”信号带宽,而不会在输出信号与干扰加噪声功率比(SINR)方面牺牲系统性能等级。 两个设计 - 前一个和折衷之后的设计将导致具有相同性能水平的两个不同的发射机 - 接收机对。 在许多应用中,例如在电信中,由于可用带宽是非常高的,所以这样的权衡将导致以额外的信号能量为代价释放另外不可用的带宽。 这样释放的带宽可以用于其他应用,或者为系统添加额外的电信容量。

    Efficient methods for wideband circular and linear array processing
    14.
    发明授权
    Efficient methods for wideband circular and linear array processing 失效
    用于宽带圆形和线性阵列处理的高效方法

    公开(公告)号:US07586437B2

    公开(公告)日:2009-09-08

    申请号:US11953095

    申请日:2007-12-10

    IPC分类号: G01S13/00

    摘要: The objective of this patent is to develop new signal processing algorithms for a wide-band circular electronically scanned array (CESA) or a wideband linear electronically scanned array (LESA) for use in surveillance and communications applications, where a sequence of pulses are transmitted and their returns are collected by the array for further processing. Instead of partitioning the entire wideband frequency into various subbands and then processing them separately using narrowband schemes, a frequency focusing method is proposed here to compensate and focus the wideband spatio-temporal data into a single narrow frequency band. This is made possible by operating with a pre-computed frequency focusing matrix that transforms the data from various frequency slots that are spread across the entire wideband region into a common narrowband frequency for the array outputs. Finally the focused narrowband data can be processed using conventional space-time adaptive processing methods to suppress the clutter/noise returns and detect any targets present.

    摘要翻译: 该专利的目的是为宽带圆形电子扫描阵列(CESA)或宽带线性电子扫描阵列(LESA)开发新的信号处理算法,用于监视和通信应用,其中发送一系列脉冲, 他们的回报由数组收集以进一步处理。 而不是将整个宽带频率划分成各种子带,然后使用窄带方案分别处理它们,这里提出一种频率聚焦方法来将宽带时空数据补偿和聚焦成单个窄频带。 这可以通过使用预计算的频率聚焦矩阵进行操作,所述频率聚焦矩阵将来自遍及整个宽带区域的各种频率的数据转换成阵列输出的公共窄带频率。 最后,可以使用常规的空时自适应处理方法来处理聚焦的窄带数据,以抑制杂波/噪声返回并检测存在的任何目标。

    Prescribed modulus chirp-like waveforms with multiple frequency notches
    17.
    发明授权
    Prescribed modulus chirp-like waveforms with multiple frequency notches 有权
    具有多个频率切口的规定模数啁啾状波形

    公开(公告)号:US08830120B2

    公开(公告)日:2014-09-09

    申请号:US13307468

    申请日:2011-11-30

    IPC分类号: G01S7/282 G01S7/288 G01S13/28

    摘要: An iterative method for modifying an initial time signal to form a created signal having a prescribed envelope, and frequency notches at prescribed frequency values, wherein the created signal closely resembles the initial time signal, the envelope of the created time signal is the prescribed envelope, and the Fourier magnitude of the created time signal at the prescribed frequency values is nearly zero. The created time signal may be a real-valued signal as well as a complex-valued time signal which closely resembles an arbitrary initial time signal, including initial time signals which are standard transmit signals for radar systems, and which have Fourier transform magnitudes with notches and stop-bands at prescribed frequency values. These notches and stop bands are created by enforcing nulls of prescribed order at the prescribed frequency values within the modified time signal.

    摘要翻译: 一种迭代方法,用于修改初始时间信号以形成具有规定包络的创建信号,并以规定的频率值进行频率切换,其中所创建的信号与初始时间信号非常相似,所创建的时间信号的包络是规定的包络, 并且在规定频率值下产生的时间信号的傅里叶幅度几乎为零。 创建的时间信号可以是实值信号以及非常类似于任意初始时间信号的复值时间信号,其包括作为雷达系统的标准发射信号的初始时间信号,并且具有带有凹口的傅立叶变换幅度 并以规定的频率值进行停带。 这些缺口和停止带是通过在修改的时间信号内以规定的频率值强制执行规定的命令的零点来创建的。

    Method and apparatus for simultaneous multi-mode processing performing target detection and tracking using along track interferometry (ATI) and space-time adaptive processing (STAP)
    18.
    发明授权
    Method and apparatus for simultaneous multi-mode processing performing target detection and tracking using along track interferometry (ATI) and space-time adaptive processing (STAP) 有权
    使用沿轨道干涉测量(ATI)和空时自适应处理(STAP)执行目标检测和跟踪的同时多模式处理的方法和装置

    公开(公告)号:US08797206B2

    公开(公告)日:2014-08-05

    申请号:US13495639

    申请日:2012-06-13

    IPC分类号: G01S13/90

    CPC分类号: G01S13/9029 G01S13/9023

    摘要: The present invention discloses one or more methods to perform multimode processing using a single set of measured data in a multi-sensor fusion framework. In this context, various data processing methodologies are combined in parallel in a suitable manner to simultaneously image, detect, identify and track moving targets over clutter such as stationary background using data obtained from a single set of measurements. Traditionally multiple sets of data would be required to perform these tasks, furthermore the disparate datum would be processed independently of one another. By using a common data source and interconnected processors the information content of the measured data can be fully exploited and leveraged to provide actionable intelligence and aid logistics.

    摘要翻译: 本发明公开了一种或多种在多传感器融合框架中使用单组测量数据进行多模式处理的方法。 在这种情况下,各种数据处理方法以合适的方式并行组合,以使用从单个测量集合获得的数据同时成像,检测,识别和跟踪诸如静止背景的杂波上的移动目标。 传统上,需要多组数据来执行这些任务,此外,不同的数据将被彼此独立地处理。 通过使用通用数据源和互连处理器,可以充分利用和利用测量数据的信息内容来提供可操作的智能和辅助物流。

    TARGET AND CLUTTER ADAPTIVE ON-OFF TYPE TRANSMIT PULSING SCHEMES
    20.
    发明申请
    TARGET AND CLUTTER ADAPTIVE ON-OFF TYPE TRANSMIT PULSING SCHEMES 审中-公开
    目标和离合器自适应开 - 关类型发送脉冲计划

    公开(公告)号:US20100164806A1

    公开(公告)日:2010-07-01

    申请号:US12344878

    申请日:2008-12-29

    IPC分类号: G01S1/00

    CPC分类号: G01S7/28 G01S13/106

    摘要: One or more embodiments of the present invention relates to the design an adaptive transmit non-periodic ON-OFF pulse width modulated (PWM) signal sequence over a radar dwell time that is matched to the target and clutter characteristics so as to maximize the target response adaptively. In this context, in the first step, some optimality criterion such as maximizing the ratio of the target output signal power to the mean clutter power at the receiver input is used to design a pre-transmit waveform. In the second step, a Pulse Width Modulation method is used to convert the pre-transmit waveform so designed to a non-periodic ON-OFF pulse width modulated (PWM) waveform signal without destroying the target and clutter matching characteristics of the pre-transmit signal. This allows maximum response from the target and minimum response from the clutter and the environment when the target and its surroundings are interrogated with the non-periodic ON-OFF pulse width modulated (PWM) signal waveform.

    摘要翻译: 本发明的一个或多个实施例涉及在雷达停留时间上匹配的目标和杂波特性的自适应发射非周期性ON-OFF脉冲宽度调制(PWM)信号序列,以便使目标响应最大化 自适应地 在这种情况下,在第一步中,使用诸如使目标输出信号功率与接收机输入端的平均杂波功率的比率最大化的一些最优性标准来设计预发射波形。 在第二步中,使用脉冲宽度调制方法将所设计的预发射波形转换为非周期性的ON-OFF脉冲宽度调制(PWM)波形信号,而不会破坏预发射的目标和杂波匹配特性 信号。 当使用非周期性ON-OFF脉冲宽度调制(PWM)信号波形来询问目标及其周围环境时,这允许来自目标的最大响应和来自杂波和环境的最小响应。