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21. 发明授权

US06373194B1 Optical magnetron for high efficiency production of optical radiation 有权
标题翻译：光磁控管用于高效率生产光学辐射
公开(公告)号：US06373194B1
公开(公告)日：2002-04-16
申请号：US09584887
申请日：2000-06-01
申请人： James G. Small
发明人： James G. Small
IPC分类号： H01J2550
CPC分类号： H01J23/165 , H01J23/213 , H01J23/22 , H01J25/50
摘要： An optical magnetron is provided which includes a cylindrical cathode having a radius rc, and an annular-shaped anode having a radius ra and coaxially aligned with the cathode to define an anode-cathode space having a width wa=ra−rc. The optical magnetron further includes electrical contacts for applying a dc voltage between the anode and the cathode and establishing an electric field across the anode-cathode space, and at least one magnet arranged to provide a dc magnetic field within the anode-cathode space generally normal to the electric field. A plurality of resonant cavities are provided with each having an opening along a surface of the anode which defines the anode-cathode space. Electrons emitted from the cathode are influenced by the electric and magnetic fields to follow a path through the anode-cathode space and pass in close proximity to the openings of the resonant cavities to create a resonant field in the resonant cavities. The resonant cavities are each designed to resonate at a frequency having a wavelength &lgr;, and circumference 2&pgr;ra of the surface of the anode is greater than &lgr;.
摘要翻译：提供一种光磁控管，其包括具有半径rc的圆柱形阴极和具有半径r并与阴极同轴对准的环形阳极，以限定具有宽度wa = ra-rc的阳极 - 阴极空间。光磁控管还包括用于在阳极和阴极之间施加直流电压并且在阳极 - 阴极空间之间建立电场的电触点，以及布置成在阳极 - 阴极空间内提供大致正常的直流磁场的至少一个磁体到电场。设置多个谐振腔，每个谐振腔具有沿阳极表面的开口，其限定阳极 - 阴极空间。从阴极发射的电子受到电场和磁场的影响，沿着穿过阳极 - 阴极空间的路径并且靠近谐振腔的开口传递，以在谐振腔中产生谐振场。谐振腔被设计成在具有波长lambd的频率处谐振，并且阳极表面的周长2pira大于lambd。

22. 发明授权

US06300898B1 Airborne GPS guidance system for defeating multiple jammers 失效
标题翻译：机载GPS导航系统，用于击败多个干扰
公开(公告)号：US06300898B1
公开(公告)日：2001-10-09
申请号：US09480957
申请日：2000-01-10
申请人： Arthur J. Schneider , James G. Small
发明人： Arthur J. Schneider , James G. Small
IPC分类号： H04B7185
CPC分类号： H04K3/92 , G01S19/015 , G01S19/09 , G01S19/11 , G01S19/18 , G01S19/21 , H04K3/255 , H04K3/28 , H04K3/90 , H04K2203/22 , H04K2203/24
摘要： A missile guidance system designed to operate on GPS signals in an anti-jamming environment. The inventive system includes first, second and third airborne vehicles (20). A GPS receiver (24) is mounted on each of the three vehicles (20) to receive signals transmitted from spaceborne satellites (14). Each vehicle (20) acts as a pseudo-satellite or ‘pseudolite’. The received GPS signals are processed by a processor (26) to provide a first intermediate signal indicating the position of the vehicle (20). This signal is retransmitted from each vehicle and received by a GPS receiver mounted on a missile. The received intermediate signal is processed on the missile to provide an output signal indicating the position thereof. The pseudolites would be airborne in the vicinity of a target area. Because the pseudolites are relatively close to the targets compared to a satellite in high altitude orbit and because the pseudolites would be able to transmit a kilowatt or more power, the signal strength may be improved significantly. To succeed as a jammer, a jammer, successful against GPS satellites, would need considerably more power to succeed against aircraft carried pseudolites. The pseudolite system delivers GPS signals into the target area 40-70 dB stronger than signals coming directly from GPS satellites. By timing the signals for 100% time coverage, enemy C/A code receivers will be jammed because they are limited to a J/S capability of 30 dB.
摘要翻译：导弹引导系统设计用于在抗干扰环境中对GPS信号进行操作。本发明的系统包括第一，第二和第三机载车辆（20）。 GPS接收器（24）安装在三个车辆（20）中的每一个上，以接收从星载卫星（14）发射的信号。每个车辆（20）用作伪卫星或“伪卫星”，所接收的GPS信号由处理器（26）处理以提供指示车辆（20）的位置的第一中间信号，该信号从每个由导弹安装的GPS接收机接收，接收到的中间信号在导弹上进行处理，提供一个表示其位置的输出信号，伪卫星将在目标区域附近空中传播，因为伪卫星相对较近与高空轨道的卫星相比，由于伪卫星能够传输千瓦或更大的功率，所以信号强度可能会大大提高。作为干扰器成功，干扰器将成功应对GPS卫星，将需要相对于成功的飞机携带伪卫星的能力要大得多，伪卫星系统将GPS信号传输到目标区域，比直接来到的信号强40-70 dB m GPS卫星。通过对100％时间覆盖的信号定时，敌方C / A码接收机将被卡住，因为它们被限制在30dB的J / S能力。

23. 发明授权

US5786786A Photonic radar decoy 失效
标题翻译：光子雷达诱饵
公开(公告)号：US5786786A
公开(公告)日：1998-07-28
申请号：US818859
申请日：1997-03-17
申请人： James G. Small
发明人： James G. Small
IPC分类号： G01S7/38 , G01S7/41 , G01S13/76
CPC分类号： G01S7/38 , G01S7/415
摘要： A photonic radar decoy (50) is provided which simulates an aircraft to a radar having an interrogating signal. A plurality of receiving antenna (52, 54, 56, 58, 60) are attached to the decoy (50) with each of the receiving antenna (52, 54, 56, 58, 60) independently capable of receiving the interrogating signal from the interrogating radar system. Each signal received by an antenna (52, 54, 56, 58, 60) is transmitted to a signal combiner and amplifier (82) by delay lines (72, 74, 76, 78, 80). The combiner and amplifier (82) coherently adds the transmitted signals, thereby producing a coherent signal which is amplified and subsequently emitted by a non-directional transmission antenna 106, simulating a dynamic and complex radar signature of an aircraft.
摘要翻译：提供了一种将飞机模拟成具有询问信号的雷达的光子雷达诱饵（50）。多个接收天线（52,54,56,58,60）被连接到诱饵（50），每个接收天线（52,54,56,58,60）能够独立地接收来自该接收天线的询问信号询问雷达系统由天线（52,54,56,58,60）接收的每个信号通过延迟线（72,74,76,78,80）发送到信号组合器和放大器（82）。组合器和放大器（82）相干地相加所发送的信号，从而产生相干信号，其被无方向性发送天线106放大并随后发射，模拟飞行器的动态和复杂雷达签名。

24. 发明授权

US5537909A All-aspect bomb damage assessment system 失效
标题翻译：全方位炸弹伤害评估系统
公开(公告)号：US5537909A
公开(公告)日：1996-07-23
申请号：US423391
申请日：1995-04-17
申请人： Arthur J. Schneider , James G. Small , Donald E. French , Henry August
发明人： Arthur J. Schneider , James G. Small , Donald E. French , Henry August
IPC分类号： F42B10/56 , B64D1/04 , F42B12/36 , F42B15/00 , G01S3/782 , G01S13/89
CPC分类号： B64D1/04 , F42B12/365
摘要： A bomb damage assessment system that is carried by a weapon and released to provide imagery of a bombed area before and after bomb delivery. The system comprises a glider that is releasably secured to the weapon that includes tracking and guidance electronics for programmably controlling the flight thereof. An imaging system is disposed in the front end of the glider and a deployable ballute is disposed at the rear end thereof. A data link is provided for transmitting images to a command center for review. The system provides imagery of a target area before, during and after weapon impact. Television or infrared cameras may be used for day or night missions. As a target area is approached, the glider is released, is decelerated by the ballute, wings are unfolded, and the ballute is released, resulting in an aerodynamic vehicle that flies much slower than the weapon. The imaging system tracks the weapon to impact. The explosion of the weapon produces a hot spot that is tracked by the imaging system. The hot spot is tracked until a preselected depression angle is reached. The glider banks until the hot spot is at a predetermined angle relative to the centerline thereof. This results in a spiral glide path around the hot spot so that the target area is viewed from all aspects. The spiral path also results in a monotonically decreasing range to the hot spot. The glider may employ a GPS receiver, and the target location in GPS coordinates may be entered into the guidance and control system. The glider may be programmed to fly along a specific path or geometric surface in GPS coordinates toward the target. Using a fixed field of view imaging system, a large amount of background is seen from long range and better linear resolution is obtained at short range until the glider descends to the ground. Bomb damage assessment may be performed at the command center within minutes of weapon impact.
摘要翻译：炸弹损伤评估系统，由武器携带并被释放，以在炸弹传送前后提供轰炸区域的图像。该系统包括可释放地固定到武器上的滑翔机，其包括用于可编程地控制其飞行的跟踪和引导电子装置。成像系统设置在滑翔机的前端，并且可展开的小球在其后端设置。提供数据链接用于将图像发送到指挥中心进行审查。该系统在武器冲击之前，之中和之后提供目标区域的图像。电视或红外摄像机可用于白天或夜间任务。当接近目标区域时，滑翔机被释放，由球道减速，机翼展开，气球被释放，产生飞行比武器慢得多的空气动力学车辆。成像系统跟踪武器的影响。武器的爆炸产生了由成像系统跟踪的热点。跟踪热点直到达到预选的俯角。滑翔机直到热点相对于其中心线处于预定角度。这导致围绕热点的螺旋滑动路径，使得从各个方面观察目标区域。螺旋路径也导致热点单调减少的范围。滑翔机可以使用GPS接收机，并且GPS坐标中的目标位置可以被输入到引导和控制系统中。滑翔机可以被编程为沿GPS坐标向着目标的特定路径或几何表面飞行。使用固定视野成像系统，从远距离看到大量的背景，并且在短距离内获得更好的线性分辨率，直到滑翔机下降到地面。炸弹伤害评估可能在武器冲击的几分钟内在指挥中心进行。

25. 发明授权

US5146616A Ultra wideband radar transmitter employing synthesized short pulses 失效
标题翻译：采用合成短脉冲的超宽带雷达发射机
公开(公告)号：US5146616A
公开(公告)日：1992-09-08
申请号：US722621
申请日：1991-06-27
申请人： Raymond Tang , James G. Small
发明人： Raymond Tang , James G. Small
IPC分类号： G01S7/282 , G01S13/02
CPC分类号： G01S13/0209 , G01S7/282
摘要： A predetermined radar pulse train is formed in space by transmitting individual spectral components thereof. Thus, a train of extremely short pulses is obtained without switching a radio frequency signal on and off at a high rate. A crystal oscillator is coupled to a harmonic generator such as a comb generator. A power divider distributes the output of the harmonic generator to a multiplicity of final filter amplifiers. Each final filter amplifier has a phase-locked VCO circuit that provides frequency accuracy, spectral purity, low noise and frequency stability. Thus, each final filter amplifier provides one of the spectral components of the predetermined radar pulse train. The final filter amplifiers are coupled by duplexers to a broadband multiplexing feed such as a nested cup dipole feed that illuminates a reflector. On receive, the broadband multiplexing feed separates all the spectral components of the incoming pulse train. Each spectral component is coupled to its own narrow band receiver by the duplexers. One receiver is used to amplify and detect each spectral component. The signals from the receivers are coherently combined in a signal processor in which the signals add coherently and the noise signals do not. This provides a processing gain in signal to noise ratio corresponding to the total number of receivers. The output of the signal processor is applied to a radar display.
摘要翻译：通过发送其各个频谱分量在空间中形成预定的雷达脉冲串。因此，在不以高速率接通和关闭射频信号的情况下获得极短脉冲串。晶体振荡器耦合到诸如梳发生器的谐波发生器。功率分配器将谐波发生器的输出分配到多个最终滤波放大器。每个最终滤波放大器都有一个锁相VCO电路，提供频率精度，光谱纯度，低噪声和频率稳定性。因此，每个最终滤波器放大器提供预定的雷达脉冲串的一个频谱分量。最后的滤波器放大器由双工器耦合到宽带复用馈送，例如照亮反射器的嵌套杯偶极子馈电。在接收时，宽带复用馈送分离输入脉冲序列的所有频谱分量。每个频谱分量由双工器耦合到其自己的窄带接收机。一个接收机用于放大和检测每个频谱分量。来自接收机的信号被相干地组合在信号处理器中，其中信号相干地相加，噪声信号不加。这提供了对应于接收机总数的信噪比的处理增益。信号处理器的输出被应用于雷达显示器。

26. 发明授权

US5120951A Optoelectronic motion and fluid flow sensor with resilient member deflected by fluid flow 失效
标题翻译：流体动力学和流体流动传感器与流体流动的回弹成员
公开(公告)号：US5120951A
公开(公告)日：1992-06-09
申请号：US564006
申请日：1990-08-07
申请人： James G. Small
发明人： James G. Small
IPC分类号： G01F1/00 , G01D5/26 , G01D5/34 , G01F1/28 , G01P9/00 , G01P13/04 , G01P15/093 , G01P15/18 , G02B6/00
CPC分类号： G01D5/268 , G01D5/34 , G01F1/28 , G01P15/093 , G01P9/00
摘要： A sensor includes a light source (24) and photosensor (28) which are disposed on opposite sides of a fluid flow passageway. A resilient member is fixedly supported at one end or edge and entrained in the fluid (14) for varying the amount of light incident on the photosensor (28) from the light source (24) as a function of the amount of deflection of the resilient member caused by motion of the fluid (14) in the passageway. The resilient member may be an optical fiber (18) which transmits light from the light source (24) toward the photosensor (28). Alternatively, the resilient member may be a curtain (62) which variably blocks propagation of light from the light source (24) to the photosensor (28). The passageway may be defined by a container (12) which is filled with the fluid (14), and the sensor constructed to sense rotational or linear motion of the container (12) relative to the fluid (14). In this case, the fluid resists movement due to stationary inertia, thereby causing relative deflection of the entrained resilient member. Alternatively, the passageway may be maintained stationary, and a fluid directed to flow therethrough which causes deflection of the resilient member and enables measurement of the rate of fluid flow through the passageway.

27. 发明授权

US5093563A Electronically phased detector arrays for optical imaging 失效
标题翻译：用于光学成像的电子相位检测器阵列
公开(公告)号：US5093563A
公开(公告)日：1992-03-03
申请号：US321661
申请日：1989-03-03
申请人： James G. Small , Dennis R. Rossbach
发明人： James G. Small , Dennis R. Rossbach
IPC分类号： G02B27/58
CPC分类号： G02B27/58
摘要： An optical imaging system includes an array of small aperture subtelescopes each with heterodyne detectors. The array detects the amplitude and phase of light waves emanating from a scene under observation before they are combined into an image. The beam combining and interfering functions are performed after detection by the use of novel electronic signal processsing. Large-aperture resolution is synthesized by electronically detecting and correcting phase errors without optical phase compensating components. Parallel processing and atmospheric turbulence compensation are achieved. The system images laser illuminated or naturally illuminated targets as well as stationary or moving targets. The heterodyne detectors can also achieve similar results when arranged in a pupil plane array located behind a single large aperture telescope.
摘要翻译：一种光学成像系统包括每个具有外差检测器的小孔子视锥的阵列。该阵列在将它们组合成图像之前检测从观察场景发出的光波的幅度和相位。通过使用新颖的电子信号处理检测后进行光束组合和干扰功能。通过电子检测和校正相位误差而不使用光学相位补偿元件来合成大孔径分辨率。实现并行处理和大气湍流补偿。系统将激光照明或自然照射的目标以及静止或移动的目标图像。当设置在位于单个大孔径望远镜后面的瞳孔平面阵列中时，外差检测器也可以获得类似的结果。

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