公开(公告)号：US20060140054A1

公开(公告)日：2006-06-29

申请号：US10559623

申请日：2004-06-08

申请人： Nathan Intrator ,  Leon Cooper ,  Nicola Neretti

发明人： Nathan Intrator ,  Leon Cooper ,  Nicola Neretti

IPC分类号： G01S15/02

CPC分类号： G01S7/527

摘要： A system and method of performing sonar range estimations in a noisy sonar environment. The system includes a sensor, a transmitter, a receiver, a plurality of band-pass filters, a cross correlator, and a data analyzer. The transmitter transmits a pulse through a transmission medium. The pulse travels through the transmission medium until it strikes an object, which returns an echo to the sensor. The sensor provides the echo to the receiver, which provides an indication of the echo to the band-pass filters. The respective band-pass filters provide filtered versions of the echo and pulse to the cross correlator, which performs multiple cross correlation operations on the filtered echo and pulse. The cross correlator provides output data to the data analyzer, which uses the data to estimate the SNR in the environment and to determine a pulse center frequency corresponding to the estimated SNR. By controlling the center frequency of pulses emitted by the transmitter based on information provided by the data analyzer, the system obtains sonar range estimations with increased accuracy.

摘要翻译： 在噪声声纳环境中执行声纳范围估计的系统和方法。 该系统包括传感器，发射器，接收器，多个带通滤波器，互相关器和数据分析器。 发射机通过传输介质发送脉冲。 脉冲通过传输介质，直到其撞击物体，这将返回到传感器。 传感器向接收器提供回波，其提供带通滤波器的回波的指示。 相应的带通滤波器向互相关器提供回波和脉冲的滤波版本，其对滤波的回波和脉冲执行多个互相关操作。 交叉相关器向数据分析器提供输出数据，数据分析器使用数据来估计环境中的SNR，并确定与估计的SNR相对应的脉冲中心频率。 通过根据数据分析仪提供的信息控制发射机发出的脉冲的中心频率，系统以更高的精度获得声纳范围估计。

公开(公告)号：US20060235635A1

公开(公告)日：2006-10-19

申请号：US10567887

申请日：2004-08-05

申请人： Nathan Intrator ,  Ki-o Kim ,  Nicola Neretti ,  Leon Cooper

发明人： Nathan Intrator ,  Ki-o Kim ,  Nicola Neretti ,  Leon Cooper

IPC分类号： G06F19/00

CPC分类号： G01S7/5273 ,  G01V1/28 ,  H04L67/125

摘要： A system and method for increasing the accuracy of time delay estimates of signals propagating through an environment. The system includes one or more sensors for receiving a plurality of signals, and a time delay estimator for measuring time delays between multiple pairs of signals. At least some of the multiple pairs of signals are received and measured at different points in time. The system further includes a data analyzer for analyzing time delay estimation data, for generating a statistical distribution of time delay estimates from the data, and for calculating a statistical estimate of time delay from the distribution. By increasing the number of signals employed by the system, the accuracy of the time delay estimation is increased. Further, by calculating the median or the mode of the statistical distribution, noise tolerance is improved. The signals employed by the system may include sonar signals, seismic signals, ultrasonic signals, acoustic signals, electromagnetic signals, or any other suitable type of signals.

摘要翻译： 一种用于增加通过环境传播的信号的时间延迟估计的精度的系统和方法。 该系统包括用于接收多个信号的一个或多个传感器，以及用于测量多对信号之间的时间延迟的时间延迟估计器。 在不同的时间点接收和测量多对信号中的至少一些。 该系统还包括用于分析时间延迟估计数据的数据分析器，用于从数据生成时间延迟估计的统计分布，以及用于从分布计算时间延迟的统计估计。 通过增加系统采用的信号数量，可以提高时间延迟估计的精度。 此外，通过计算统计分布的中值或模式，提高了噪声容限。 系统使用的信号可以包括声纳信号，地震信号，超声信号，声信号，电磁信号或任何其它合适类型的信号。

公开(公告)号：US6015230A

公开(公告)日：2000-01-18

申请号：US942007

申请日：1997-10-01

申请人： James C. Wantz ,  Leon Cooper

发明人： James C. Wantz ,  Leon Cooper

IPC分类号： G08B29/14 ,  G08B29/00 ,  G01K15/00

CPC分类号： G08B29/145

摘要： A method and kit of parts for testing heat detectors mounted at an elevated location above a ground surface using a supercorrosive metal alloy composition formulated to react exothermically but non-flammably upon being wetted for sustaining temperatures of about 195 degrees Fahrenheit, permitting testing of heat detectors rated at 175 to 195 degrees F. The composition is formed into convenient wafers which are elevated on an extension pole into proximity to the heat detector by an operator standing on the ground. The wafers may be activated by wetting with a disposable plastic syringe, and may be reheated several times.

摘要翻译： 一种用于测试安装在地面上方高架位置处的热探测器的方法和试剂盒，其使用配置为在被湿润的温度下放热但不易燃反应的超腐蚀性金属合金组合物，以维持约195华氏度的温度，允许测试热探测器 额定值为175至195华氏度。组合物形成方便的晶片，其通过站在地面上的操作者在延伸杆上升高到靠近热检测器。 可以通过用一次性塑料注射器润湿来活化晶片，并且可以重新加热数次。

公开(公告)号：US2785004A

公开(公告)日：1957-03-12

申请号：US46226854

申请日：1954-10-14

申请人： LEON COOPER

发明人： LEON COOPER

IPC分类号： B60J1/14

CPC分类号： B60J1/14

公开(公告)号：US5139699A

公开(公告)日：1992-08-18

申请号：US544457

申请日：1990-06-27

申请人： Leon Cooper ,  William H. Haines

发明人： Leon Cooper ,  William H. Haines

IPC分类号： C09K3/30 ,  G08B29/14

CPC分类号： C09K3/30 ,  G08B29/145

摘要： An improved aerosol formulation for activating a smoke detector by emulating the effects of combustion products to test smoke detectors includes a propellant and an active ingredient consisting of one or more linear alkyl phthalate esters characterized by linear carbon chains of either seven or nine carbons in length, the alkyl phthalate esters being present in a proportion of between 10% and 1%.

摘要翻译： 用于通过模拟燃烧产物来测试烟雾探测器的影响来激活烟雾探测器的改进的气溶胶制剂包括推进剂和由一种或多种线性烷基邻苯二甲酸酯组成的活性成分，其特征在于长度为7或9个碳的直链碳链， 邻苯二甲酸烷基酯以10％至1％的比例存在。