Delco Electronics Corporation

Zhaohong Zhang

Mark Ford Henderson

Adil Ansari

Phillip A May

Michael J Shorkey

John Christopher Reed

Fie A Liem

Each signal channel has a 12 bit A/D converter which begins conversion after each read cycle. A 24 bit digital signal processor is connected by a 24 bit data bus to the converters such that one converter supplies data to the upper data lines and the other supplies data to the lower data lines of the bus. Both converters are simultaneously read into the processor, the data being combined into one word. The processor then splits the word into separate data for each channel by multiply and move operations.

Method and apparatus for sampling quadrature signals

A method and system for discriminating a target which presents a hazard to a motor vehicle moving in a first lane of traffic from a target moving in a second adjacent lane of traffic which does not present a hazard to the vehicle. The method includes the steps of utilizing an antenna mounted flush to a side of the vehicle to produce a radar beam having a beamwidth greater than 5-10 degrees to illuminate the target. At least a portion of the radar beam is produced along a first axis which is perpendicular to the direction of motion of the vehicle. The reflected signal is received from the illuminated target and a velocity of the illuminated target is estimated with a Kalman filter relative to the velocity of the vehicle in the direction of a second axis which is parallel to the direction of motion of the vehicle based on the reflected signal. The method also includes the steps of measuring the velocity of the vehicle using at least one velocity sensor and determining that the illuminated target is hazardous if the sum of the measured vehicle velocity and the estimated parallel target velocity is greater than a predetermined threshold. The illuminated target is determined not to be hazardous if the sum of the measured vehicle velocity and the estimated parallel target velocity is less than a predetermined threshold.

Blind-zone target discrimination method and system for road vehicle radar

Detection means having thin wire electrodes that are placed on the outer surface of a radome that shelters an antenna used for transmitting and/or receiving intelligence in the form of radio waves, such as those microwave signals used in radar, especially radar that is used for a vehicle. The thin wire electrodes are placed on the radome surface in a way which will not change antenna characteristics. The electrodes measure the electrical resistance of the obstruction material, such as wet mud, that may find its way onto the outer surface of the radome during the operation of the vehicle and that may reduce the sensitivity of the radar's receiver so as to prevent it from recognizing otherwise discernable echo information. The detection means, upon detecting a predetermined electrical resistance of the obstruction material, provides a signal that is routed to the operator that is indicative that the radar performance may have degraded beyond an acceptable limit.

Apparatus and method to detect radar radome obstruction

A road vehicle radar system for discriminating between hazard and non-hazard targets within a predetermined zone uses a pair of frequency modulated continuous wave radar cycles (FM-CW) and a single continuous wave cycle (CW) in the generation of radar quantities for measuring target range and apparent target velocity. Measured quantities from the FM-CW and CW cycles are compared with predetermined quantities for discriminating between hazard and non-hazard targets.

Growing community of inventors

Kokomo, IN, United States of America

Zhaohong Zhang