Characterization of aircraft wake vortices
    1.
    发明授权
    Characterization of aircraft wake vortices 失效
    飞机尾流涡的特征

    公开(公告)号:US07703319B2

    公开(公告)日:2010-04-27

    申请号:US11817302

    申请日:2006-02-28

    IPC分类号: G01F1/66

    摘要: A bi-static sodar system and method are used to measure and monitor the wake vortices of aircraft in the flight path of an airport runway. A loudspeaker (16) is arranged on one side of the flight path (12) and transmits a series of acoustic pulses to illuminate portion of the flight path. Multiple microphones (18, 20 and 22) are arranged on the opposite side of the flight path (12) so as to receive direct signals from the loudspeaker (16) and forward-scattered echo signals from an echo source (26) within the illuminated portion of the flight path. The microphones (18, 20 and 22) are arranged at different distances from the loudspeaker so that the time intervals between the receipt of the direct and echo signals from each pulse will vary because of the different locations of the microphones. This variation is used to assist in identifying the location and other characteristics of the echo signals and in generating an output indicative of a wake vortex (28).

    摘要翻译: 双静态sodar系统和方法用于测量和监测机场跑道飞行路径中的飞机尾流涡度。 扬声器(16)布置在飞行路径(12)的一侧,并且传送一系列声脉冲以照射飞行路径的部分。 多个麦克风(18,20和22)布置在飞行路径(12)的相对侧上,以便接收来自扬声器(16)的直接信号和来自被照亮的回波源(26)内的回波源(26)的前向散射回波信号 飞行路线的一部分。 麦克风(18,20和22)布置在与扬声器不同的距离处,使得来自每个脉冲的直接和回波信号的接收之间的时间间隔将由于麦克风的不同位置而变化。 该变化用于帮助识别回波信号的位置和其他特性,以及产生指示尾流涡流的输出(28)。

    Staged Sodar Sounding
    2.
    发明申请
    Staged Sodar Sounding 失效
    分阶段Sodar探空

    公开(公告)号:US20080285387A1

    公开(公告)日:2008-11-20

    申请号:US11817307

    申请日:2006-02-28

    IPC分类号: G01S15/00

    摘要: A monostatic sodar system (10) for atmospheric sounding includes a processor and display unit (12) that generates a set of acoustic chirps for transmission by transmitter 20. Discontinuities (22, 24 and 26) result in echoes (28, 30 and 32) being returned to a receiver (38) of system (10). Receiver (38) outputs extracted echo signals on line to the processor (12) for analysis. Detector (36) implements a Fourier domain matched-filter to extract echo signals from noise. By using a set of multiple chirps of increasing length with increasing intervals between them, substantially any feasible range can be accommodated using send-then-listen techniques with the benefit of high s/n performance.

    摘要翻译: 用于大气探测的单声道系统(10)包括处理器和显示单元(12),所述处理器和显示单元(12)产生用于发射机20传输的一组声啁啾声。 不连续(22,24和26)导致返回到系统(10)的接收器(38)的回波(28,30和32)。 接收器(38)将提取的回波信号线路输出到处理器(12)用于分析。 检测器(36)实现傅立叶域匹配滤波器以从噪声中提取回波信号。 通过使用一组增加长度的多个线性调频器,它们之间具有增加的间隔,可以使用具有高s / n性能的优点的发送 - 听知技术来适应基本上任何可行的范围。

    Staged sodar sounding
    4.
    发明授权
    Staged sodar sounding 失效
    分阶段发声

    公开(公告)号:US07835227B2

    公开(公告)日:2010-11-16

    申请号:US11817307

    申请日:2006-02-28

    IPC分类号: G01S15/12

    摘要: A monostatic sodar system (10) for atmospheric sounding includes a processor and display unit (12) that generates a set of acoustic chirps for transmission by transmitter 20. Discontinuities (22, 24 and 26) result in echoes (28, 30 and 32) being returned to a receiver (38) of system (10). Receiver (38) outputs extracted echo signals on line to the processor (12) for analysis. Detector (36) implements a Fourier domain matched-filter to extract echo signals from noise. By using a set of multiple chirps of increasing length with increasing intervals between them, substantially any feasible range can be accommodated using send-then-listen techniques with the benefit of high s/n performance.

    摘要翻译: 用于大气探测的单声道系统(10)包括处理器和显示单元(12),其生成用于发射机20传输的一组声啁啾声。不连续(22,24和26)导致回波(28,30和32) 被返回到系统(10)的接收器(38)。 接收器(38)将提取的回波信号线路输出到处理器(12)用于分析。 检测器(36)实现傅立叶域匹配滤波器以从噪声中提取回波信号。 通过使用一组增加长度的多个线性调频器,它们之间具有增加的间隔,可以使用具有高s / n性能的优点的发送 - 听知技术来适应基本上任何可行的范围。

    System and method for interfacing devices under SNMP
    5.
    发明授权
    System and method for interfacing devices under SNMP 失效
    用于在SNMP下连接设备的系统和方法

    公开(公告)号:US07594005B2

    公开(公告)日:2009-09-22

    申请号:US10362493

    申请日:2001-08-16

    IPC分类号: G06F15/173

    摘要: Means for masquerading IP addresses for non-IP devices are disclosed, enabling non-IP devices or sub-networks having incompatible address spaces to be connected to an IP network and appear as addressable network objects. In one embodiment, the means may be a remote system controller (RSC) that has a block of IP addresses assigned to it for use with connected sub-networks or devices. Normally each assigned address will be associated with a management information base (MIB) containing data about the associated device, and each MIB will be associated with a protocol converter and I/O port connectable to the respective device or sub-network.

    摘要翻译: 公开了用于伪装非IP设备的IP地址的手段,使得具有不兼容地址空间的非IP设备或子网络能够连接到IP网络并且显示为可寻址网络对象。 在一个实施例中,该装置可以是远程系统控制器(RSC),其具有分配给它的IP地址块以与连接的子网络或设备一起使用。 通常,每个分配的地址将与包含有关关联设备的数据的管理信息库(MIB)相关联,并且每个MIB将与可连接到相应设备或子网络的协议转换器和I / O端口相关联。

    Telecommunications system
    6.
    发明授权
    Telecommunications system 失效
    电信系统

    公开(公告)号:US5765108A

    公开(公告)日:1998-06-09

    申请号:US442630

    申请日:1995-05-17

    CPC分类号: H04W8/186 H04W4/06 H04W4/08

    摘要: A telecommunication system having a cellular mobile telephone system in which calls from cellular telephones are routed through a mobile service switching center exchange. Users of the system, having control of respective groups of mobile telephone are able via user terminals to access respective databases in a signalling processor and to place in the data base information about call parameters, such as call restrictions, for ones of the telephone of that user controlled group. When a call is made from any mobile telephone, the call signal is decoded at the relevant exchange and a determination is made as to whether the call originates from a mobile telephone which is a member of a controlled group. If so, the related database in the controller is accessed and the call is controlled in accordance with the appropriate call parameter, on the basis of the information in the related database.

    摘要翻译: 一种具有蜂窝移动电话系统的电信系统,其中来自蜂窝电话的呼叫通过移动业务交换中心交换机路由。 具有对各组移动电话的控制的系统的用户能够经由用户终端访问信令处理器中的相应数据库,并且将关于呼叫参数(例如呼叫限制)的呼叫参数放置在数据库中, 用户控制组。 当从任何移动电话进行呼叫时,在相关交换机处对呼叫信号进行解码,并且确定呼叫是否源自作为受控组的成员的移动电话。 如果是,则根据相关数据库中的信息,访问控制器中的相关数据库并根据适当的呼叫参数来控制呼叫。

    METHOD FOR IMPROVING PERFORMANCE OF A SODAR SYSTEM
    7.
    发明申请
    METHOD FOR IMPROVING PERFORMANCE OF A SODAR SYSTEM 有权
    改善SODAR系统性能的方法

    公开(公告)号:US20150241561A1

    公开(公告)日:2015-08-27

    申请号:US14432450

    申请日:2013-10-02

    IPC分类号: G01S15/88 G01S7/52 G01S15/34

    摘要: A method is disclosed for improving performance of a Sodar system adapted to locate discontinuities in the atmosphere by transmitting pulse compression signals such as plural acoustic chirps. The method comprises transmitting the acoustic chirps, receiving acoustic echoes of the chirps, and processing the acoustic echoes to provide an indication of the discontinuities, wherein the processing includes correcting range or resolution error associated with the acoustic echoes.

    摘要翻译: 公开了一种用于改善适于通过发射诸如多个声啁啾的脉冲压缩信号来定位大气中的不连续性的Sodar系统的性能的方法。 该方法包括发送声线啁啾声,接收线性调频脉冲的声学回声,以及处理声学回声以提供不连续性的指示,其中该处理包括校正与声学回声相关联的范围或分辨率误差。

    CHARACTERIZATION OF AIRCRAFT WAKE VORTICES
    8.
    发明申请
    CHARACTERIZATION OF AIRCRAFT WAKE VORTICES 失效
    飞行器波纹的特征

    公开(公告)号:US20090107232A1

    公开(公告)日:2009-04-30

    申请号:US11817302

    申请日:2006-02-28

    IPC分类号: G01S15/88

    摘要: A bi-static sodar system and method are used to measure and monitor the wake vortices of aircraft in the flight path of an airport runway. A loudspeaker (16) is arranged on one side of the flight path (12) and transmits a series of acoustic pulses to illuminate portion of the flight path. Multiple microphones (18, 20 and 22) are arranged on the opposite side of the flight path (12) so as to receive direct signals from the loudspeaker (16) and forward-scattered echo signals from an echo source (26) within the illuminated portion of the flight path. The microphones (18, 20 and 22) are arranged at different distances from the loudspeaker so that the time intervals between the receipt of the direct and echo signals from each pulse will vary because of the different locations of the microphones. This variation is used to assist in identifying the location and other characteristics of the echo signals and in generating an output indicative of a wake vortex (28).

    摘要翻译: 双静态sodar系统和方法用于测量和监测机场跑道飞行路径中的飞机尾流涡度。 扬声器(16)布置在飞行路径(12)的一侧,并且传送一系列声脉冲以照射飞行路径的部分。 多个麦克风(18,20和22)布置在飞行路径(12)的相对侧上,以便接收来自扬声器(16)的直接信号和来自被照亮的回波源(26)内的回波源(26)的前向散射回波信号 飞行路线的一部分。 麦克风(18,20和22)布置在与扬声器不同的距离处,使得来自每个脉冲的直接和回波信号的接收之间的时间间隔将由于麦克风的不同位置而变化。 该变化用于帮助识别回波信号的位置和其他特性,以及产生指示尾流涡流的输出(28)。

    Detection of wake vortices and the like in the lower atmosphere

    公开(公告)号:US07284421B2

    公开(公告)日:2007-10-23

    申请号:US10568202

    申请日:2004-08-11

    IPC分类号: G01F1/66

    CPC分类号: G01S15/885

    摘要: Two SODAR systems (12a and 12r) for detecting and characterizing vortices (16) shed from landing or departing aircraft (14) as at an airport (10) are positioned so that one, the active system (12a) is located beneath the likely vortices (16) and the other, the reference system (12r) is located away from the vortices but in the same ambient environment. Thus, where a wind duct or thermal inversion (18) is present, both SODAR systems will detect echoes (22 and 28) generated thereby, whereas only the active system (12a) will detect echoes (24) from wake vortices (16). By differencing the outputs of the reference and active systems, better vortex identification and discrimination is achieved. Only one SODAR system need be used where sufficiently normal conditions prevail between aircraft activity, since readings taken in the absence of aircraft can be used as reference data for subtraction from ‘active’ data recorded during the presence of aircraft.

    Sodar sounding of the lower atmosphere
    10.
    发明授权
    Sodar sounding of the lower atmosphere 失效
    索达声音较低的气氛

    公开(公告)号:US07178408B2

    公开(公告)日:2007-02-20

    申请号:US10547117

    申请日:2004-02-26

    IPC分类号: G01F1/66

    CPC分类号: G01S15/885 G01P5/24 G01S15/58

    摘要: A method and system for acoustically sounding the lower atmosphere involves the transmitting of an acoustic chirp and the processing of returned echoes and interference using wavelet and matched filter techniques. A single transmitter and four receivers may be used, with receivers located equidistant from the transmitter on the cardinal points of the compass. N, S, E, & W inputs are digitized and input to a wavelet filter (50) together with the transmitter chip signal (R or D) for the attenuation of the direct signal and ambient noise signals. The interference-attenuated signals are then processed in a matched filter (52) to extract phase and amplitude outputs (54 and 56), the phase output being unwrapped (70). The N and S phase signals and the E and W phase signals are then separately differenced (74 and 80) and the results used to compute (86 and 92) wind speed and bearing. Extracted amplitude signals (56) are put through a second wavelet filter (58) to remove echo clutter before being stored, along with the wind speed and bearing data in a range gate (96).

    摘要翻译: 用于在低层大气中声学探测的方法和系统包括使用小波和匹配滤波器技术传输声啁啾和返回的回波和干扰的处理。 可以使用单个发射机和四个接收机,其中接收机在罗盘的基点上与发射机等距。 N,S,E和W输入被数字化并与发射机芯片信号(R或D)一起输入到小波滤波器(50),用于衰减直接信号和环境噪声信号。 干扰衰减信号然后在匹配滤波器(52)中被处理以提取相位和振幅输出(54和56),相位输出被解包(70)。 然后分别对N和S相信号和E相和W相信号进行差分(74和80),结果用于计算(86和92)风速和轴承。 提取的振幅信号(56)通过第二小波滤波器(58),以在存储之前除去回波杂波,以及风速和方位数据在范围门(96)中。