公开(公告)号：US4242640A

公开(公告)日：1980-12-30

申请号：US866445

申请日：1978-01-03

申请人： Donald E. Bean

发明人： Donald E. Bean

IPC分类号： H03K4/00 ,  G01S7/28 ,  G01S7/292 ,  G01S7/32 ,  G01S7/36 ,  G06G7/18 ,  H03K4/501 ,  H03K3/02 ,  H03K4/02

CPC分类号： G01S7/36 ,  G01S7/32

摘要： A fast time constant circuit includes input and output amplifier means coupled together through an R-C network containing a series capacitor and a shunt-connected constant current source in which the level of current flow through the current source is regulated by means of a remote adjustable d.c. voltage source.

摘要翻译： 快速时间常数电路包括通过包含串联电容器和分流连接的恒流源的R-C网络耦合在一起的输入和输出放大器装置，其中通过电流源的电流水平通过远程可调直流电流进行调节。 电压源。

公开(公告)号：US4890105A

公开(公告)日：1989-12-26

申请号：US97975

申请日：1987-09-17

申请人： Donald E. Bean ,  Billy M. Coleman

发明人： Donald E. Bean ,  Billy M. Coleman

IPC分类号： G01C17/36 ,  G01C19/40 ,  G01D5/244 ,  G01D5/245 ,  H03M1/00

CPC分类号： H03M1/645 ,  H03M1/34

摘要： A compass data converter converts 180X and 90X synchro compass data to 1/6 degree step data. 180X synchro data is converted by utilizing a 360X to 1/6 degree step data converter that divides the synchro rotation into six 60.degree. sectors providing a digital step data code representative thereof. A 180X converter further sub divides the 60.degree. sectors into 30.degree. sub sectors by selecting a synchro output in accordance with the step data code from the 360X converter and comparing the selected synchro output to ground to provide an additional step data digit. The converter for 90X data further sub-divides the 30.degree. sub-sectors into 15.degree. intervals by selecting two synchro outputs in accordance with the 360X step data code and the additional step data digit and scaling one of the selected synchro outputs to equal the other selected synchro output at the 15.degree. interval boundaries. A comparison of the selected unscaled synchro output and the selected scaled synchro output provides a fifth step data digit for the 90X code.

公开(公告)号：US4517567A

公开(公告)日：1985-05-14

申请号：US352484

申请日：1982-02-25

申请人： Patrick G. Lee ,  Donald E. Bean ,  Randy T. Jones

发明人： Patrick G. Lee ,  Donald E. Bean ,  Randy T. Jones

IPC分类号： H03K3/02 ,  G01S7/28 ,  G01S7/282 ,  H03K5/15

CPC分类号： G01S7/282

摘要： The radar trigger and pretrigger generator determines the inherent component time delay through the radar modulator and transmitter during a first cycle of operation. During the next cycle of operation a pretrigger pulse is generated after a time corresponding to the previously measured delay and a trigger pulse is generated after a time corresponding to an operator selectable delay. The trigger pulse is used to trigger the radar modulator, which in effect, permits the operator to control the elapsed time between pretrigger pulse and transmitter firing in a fashion which is completely independent of circuit delay variances through the radar modulator and transmitter.

摘要翻译： 雷达触发和预触发发生器在第一个操作周期内确定通过雷达调制器和发射器的固有分量时间延迟。 在下一个操作周期期间，在对应于先前测量的延迟的时间之后产生预触发脉冲，并且在对应于操作者可选延迟的时间之后产生触发脉冲。 触发脉冲用于触发雷达调制器，其实际上允许操作者以完全独立于雷达调制器和发射机的电路延迟方差的方式来控制预触发脉冲和发射机发射之间的经过时间。

公开(公告)号：US4224619A

公开(公告)日：1980-09-23

申请号：US6612

申请日：1979-01-26

申请人： Donald E. Bean ,  John R. Grymes, Jr. ,  Reuben E. Maine

发明人： Donald E. Bean ,  John R. Grymes, Jr. ,  Reuben E. Maine

IPC分类号： G01S20060101 ,  G01S7/22

CPC分类号： G01S7/22

摘要： Symbology is written on a radar plan position indicator display with a rotating beam deflection field. The PPI radar range is quantized into range increments and digital data representative of the symbology to be written are inserted into a shift register which is clocked in synchronism with the range sweeps to provide interleaved digital data to the video input of the display. The normal radar video data is combined with the symbology data so that the symbology and normal radar returns are simultaneously written in real time. A portion of the symbology generating apparatus provides a manual acquisition marker comprising a range ring and an azimuth geometric figure. A range switch gates a clock pulse signal into a range up/down counter for incrementing and decrementing the number therein, the digital output of the counter being representative of the range of the range ring. The decoded digital output of the range counter is loaded into the shift register for bit serial application to the video input to the display. A manually operated azimuth switch similarly increments and decrements an azimuth counter, the digital output of which being compared to the radar antenna azimuth signal for positioning the azimuth geometric figure in azimuth. The symbology writing apparatus also includes a portion for providing alphanumeric or other localized symbology. These symbols are stored in a character table in the various orientations required for the plan position indicator display and written via the output shift register at azimuth and range coordinates provided by the system, the data therefor being interleaved with the data for the manual acquisition marker.

摘要翻译： 符号学写在具有旋转光束偏转场的雷达平面位置指示器显示器上。 PPI雷达范围被量化为范围增量，并且代表要写入的符号系统的数字数据被插入到移位寄存器中，该移位寄存器与扫描范围同步地被提供，以将交替数字数据提供给显示器的视频输入。 正常的雷达视频数据与符号系统数据相结合，使得系统和正常雷达的返回同时被实时写入。 符号系统生成装置的一部分提供包括范围环和方位角几何图形的手动采集标记。 量程开关将时钟脉冲信号输入到上/下计数范围内，以增加和减少其中的数字，计数器的数字输出表示范围环的范围。 范围计数器的解码数字输出被加载到用于位串行应用的移位寄存器到显示器的视频输入。 手动方位开关类似地增加和减少方位计数器，其数字输出与用于将方位几何图形方位角定位的雷达天线方位信号进行比较。 符号系统书写装置还包括用于提供字母数字或其他局部符号系统的部分。 这些符号以平面位置指示器显示所需的各种取向存储在字符表中，并通过输出移位寄存器在由系统提供的方位角和范围坐标上写入，其数据与手动采集标记的数据交错。