Accession Number : ADD018482

Title :   Miss Distance Vector Scoring System.

Descriptive Note : Patent, Filed 28 Jul 95, patented 25 Mar 97,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Bradley, Joseph L ; Whiteman, Don ; Mills, George T

Report Date : 25 Mar 1997

Pagination or Media Count : 18

Abstract : This report describes a miss distance scoring system comprising four antennas which are configured to provide for an optimal radiation pattern of pulsed radio frequency energy to determine a missile's miss distance and miss direction from a target. Reflected pulses from a missile are received by each of the four antennas and then supplied by a radio frequency switch to a scalar scoring system which provides an analog video signal to four analog switches. The four analog switches are also connected to a controller which provides control signals to the switches to separately activate each switch. The activated analog switch then samples and holds the analog video signal with the sample being provided to an associated bandpass filter of the switch which is one of four bandpass filters. The sampled portions of the analog video signal are provided to a multiplexer and then passed sequentially through the multiplexer. The resulting doppler video signal is supplied to an analog to digital converter which converts this signal to an equivalent doppler digital signal. The equivalent doppler digital signal is next supplied to a pulse code modulation encoder which encodes the signal into a serial hit stream and provides a frame sync to the serial bit stream for transmission to a ground station by a transmitter and its associated antenna.

Descriptors :   *SCORING, *MISS DISTANCE, *PATENTS, SIGNAL PROCESSING, GUIDED MISSILES, CONTROL, DIGITAL SYSTEMS, ACTIVATION, OPTIMIZATION, ENERGY, REFLECTION, ELECTROMAGNETIC RADIATION, SIGNALS, ANTENNAS, SCALAR FUNCTIONS, MULTIPLEXING, ANALOG TO DIGITAL CONVERTERS, VIDEO SIGNALS, RADIOFREQUENCY, BANDPASS FILTERS, ANALOG SIGNALS, GROUND STATIONS, SWITCHES, DOPPLER EFFECT, CODERS, RADIOFREQUENCY PULSES, PULSE CODE MODULATION

Subject Categories : Guided Missile Traj, Accuracy and Ballistics

Distribution Statement : APPROVED FOR PUBLIC RELEASE