Abstract: An optically fed lens array radar system is provided with an on boresight ed and a plurality of off boresight feeds. When looking far enough off boresight, one switches from the on boresight feed to the appropriate off boresight feed. The off boresight feeds simultaneously cover a large scan angle and achieve with the on boresight a large bandwidth over the largest scan angle of interest.

Abstract: The position of one pulse relative to a reference pulse is obtained by hag the one pulse set a string of flip-flops until the setting is inhibited by a stop signal generated by the second pulse. The condition of the flip-flops is read by an encoded network.

Abstract: A waveguide matched load device comprising a short-circuited rectangular tion with an energy absorbing material located approximately 1/4 of a wavelength from the short-circuited end.

Abstract: Input videos from a multiple beam radar system are processed beam by beam first threshold devices which are weighted in accordance with signals from all the beams, and then the signal has to pass one of two further threshold devices before being processed as a target indication. One of the additional threshold devices is biased by all adjacent beams of the beam being processed; and the other threshold device is biased by weighted factors of the adjacent beams. The weight being dependent upon whether the beam is a near adjacent beam or a diagonally adjacent beam.

Abstract: Discrete logic circuit crosstalk in two sequentially-split pulse Darlington mplifier channels is eliminated by the use of diodes connected between the stages of the amplifiers so as to clamp the non-operating amplifier to ground condition. Also transistors may connect the non-operating amplifier to ground conditions so as to eliminate any unwanted pulses.

Abstract: A population inversion is established by beam foil excitation. A beam of completely stripped nuclei is passed through a foil target. An ion beam travels between the plates of a strip transmission line in a plane parallel to those plates. The foil is located in a slot in one of the plates. A voltage pulse is applied at the downstream end of the line and a wavefront propagates down the plates towards the upstream end. This pulse will cause deflection of the ion beam towards the foil along a linear intersection path which travels at approximately the velocity of light.

Abstract: The polarization control of the antenna is obtained by space feeding the nals through a polarization control rotator to a monopulse feedhorn.

Abstract: A close-fitting garment has a pattern of tactile stimulators arranged on surface. The stimulators can be selectively energized from some remote point in accordance with threats to a person wearing the garment. The stimulators are controlled by a radio receiver fed by a radio transmitter. The relative position of an energized stimulator on the garment is indicative of the relative position of the threat to the wearer. Frequency or amplitude of the stimulator can be used to give information such as threat speed or relative danger.

Abstract: The temperature controller senses the temperature unbalance and converts s into a DC voltage which is compared with an oscillator by a pulse width modulator. The output of pulse width modulator controls the duty cycle of a heater.

Abstract: An array of parametric amplifiers is optically fed pump power by a pump sce. Beam steering of the array is provided by changing the apparent phase of the pump source.

Abstract: A missile using fluidic sensors for determination of net aerodynamic force nd moment on the missile. The force and moment thus determined are processed and summed by fluidic amplifiers and integrators to provide control signals for fluidic thrusters or other steerers for the missile. The sensors are diametrically opposed pairs of pressure taps located axially and circumferentially in the missile skin. Net aerodynamic force on the missile is taken as the algebraic sum from all the sensors in a linear fluidic summer, and net aerodynamic moment is taken from the proportional sum of the sensors in accordance with their position along the axis of the missile. This proportional sum is made in a fluidic vortex summer.

Abstract: Pulse measurement of chirped radar returns is made before dechirping by the se of a linear detector averaging circuits and time delay circuits such that the measurement is indicative of the RMS power of the pulse. Depending on the received chirp pulse different averaging circuits and time delay circuits are switched in so that its output is coincidental with the delayed dechirped signal. Output is encoded for a digital indication of the power and is fed through scalers to set the threshold of the video signal processor.

Abstract: A feather-edge conductive pattern is sandwiched between two ferrite bars so s to cause different degrees of residual magnetism in the bars. Two other blocks of materials having relative high dielectric constants sandwich the ends of the bars, and the whole device is inclosed in a waveguide which will have variable phase shifts in accordance to the residual magnetism of the bars.

Abstract: The dual edge and level (DEL) flip-flop not only is sensitive to both posve and negative edges and level inputs, but the device can be made sensitive to (1) positive edges only, (2) negative edges only, (3) both positive and negative edges, or (4) neither positive or negative edges. In any case, the output can be controlled by the level inputs which override the edge operation.

Abstract: The pressure of the atmosphere is sensed by a pressure transducer which causes a resistance to vary. The variance of this resistor is converted to a variable frequency. The number of cycles of this frequency in a set amount of time is counted by a counter and displayed by a digital display. An up/down counter is loaded with the count of the last digital readout in the previous cycle and counts down the number of cycles in the frequency of the next reading and displays the difference on a digital display or activates a sonic output if the countdown is greater than the stored previous count.

Abstract: Correlation in time of the extremely high frequency pulses which occur in tical rangefinders is accomplished by thresholding received returns at a low thresholding value, steering each received pulse to a plurality of up/down counters such that half of the time a counter is counting up and half of the time the counter is counting down. Dividing the up/down time of the counters in a digital format so as to provide a digital range readout from the up/down counters.

Abstract: The Doppler frequency shift of coherent light reflected from moving objects is used to obtain resolution much greater than the classical limit for imaging systems. The Doppler information is processed by using the temporal and spatial filtering properties of modulated reference wave holograms formed with a reference wave having a range of frequencies across it matching the Doppler frequencies received from the moving object.

Abstract: Each of the parameters of objects in the field of view is measured and inidually compared with standard parameters. Differences in these parameters are multiplied by individual weighting factors and they are summed for each object. Object having the lowest sum is the desired target.

Abstract: Drivers (PNP transistors) are switched to ground by NPN transistors which e triggered by logic inputs. The drivers are connected in series with diodes so as to bias the diode to an on or off condition.