초록 ▼

There is disclosed herein a method for detecting objects in a predicted path of a host vehicle moving on a highway lane. The method is for use in a system including a forward looking sensor, preferably a radar system, for providing range, angle and velocity data for objects within a field of view in

There is disclosed herein a method for detecting objects in a predicted path of a host vehicle moving on a highway lane. The method is for use in a system including a forward looking sensor, preferably a radar system, for providing range, angle and velocity data for objects within a field of view in front of the host vehicle, measuring systems for providing velocity and yaw rate data for the host vehicle, and a processing system responsive to the forward looking sensor and the measuring systems. The method includes the unordered steps of (a) calculating an estimated path of the host vehicle based on its velocity and yaw rate; (b) calculating estimated paths for each of the objects; (c) determining the lateral distance of each object from the predicted path of the host vehicle; and (d) classifying each object as either in or out of the highway lane of the host vehicle. The method includes processes for detecting lane changes by the host vehicle and for generating alternative path hypotheses in response to target deviations from the predicted paths.

대표청구항 ▼

There is disclosed herein a method for detecting objects in a predicted path of a host vehicle moving on a highway lane. The method is for use in a system including a forward looking sensor, preferably a radar system, for providing range, angle and velocity data for objects within a field of view in

There is disclosed herein a method for detecting objects in a predicted path of a host vehicle moving on a highway lane. The method is for use in a system including a forward looking sensor, preferably a radar system, for providing range, angle and velocity data for objects within a field of view in front of the host vehicle, measuring systems for providing velocity and yaw rate data for the host vehicle, and a processing system responsive to the forward looking sensor and the measuring systems. The method includes the unordered steps of (a) calculating an estimated path of the host vehicle based on its velocity and yaw rate; (b) calculating estimated paths for each of the objects; (c) determining the lateral distance of each object from the predicted path of the host vehicle; and (d) classifying each object as either in or out of the highway lane of the host vehicle. The method includes processes for detecting lane changes by the host vehicle and for generating alternative path hypotheses in response to target deviations from the predicted paths. WO98/052469, WO; WO99/039631, WO; WO99/022639, WO; WO99/051142, WO along with a transmission signal, at regular periods; said mobile station estimating the transmission power control instruction signal based on the transmission power control instruction signal transmitted by said base station and a current rate of modification in the transmission power; said mobile station monitoring the estimated transmission power control instruction signal and changing the rate of modification in the transmission power based on a setting of the number of consecutive transmission power control instruction signals that have the same contents; and said mobile station controlling the transmission power of a signal to be transmitted based on the transmission power control instruction signal transmitted by said base station and the changed rate of modification in the transmission power; wherein said estimating the transmission power control instruction signal further comprises: computing a reproduced value of fading through the computation of the sum of products of the transmission power control instruction signal transmitted by said base station and a current rate of modification in the transmission power; computing a predicted value of fading through prediction analysis of said reproduced value; and estimating the transmission power control instruction signal depending on whether the gradient of the predicted value of fading is positive or negative. 5. A transmission power control method in a radio communications system for communication between a base station and a mobile station, said method comprising: said base station detecting a received power of a signal transmitted by said mobile station and transmitting, to said mobile station, a transmission power control instruction signal to control the transmission power of said mobile station, along with a transmission signal, at regular periods; said mobile station estimating the transmission power control instruction signal based on the transmission power control instruction signal transmitted by said base station and a current rate of modification in the transmission power; said mobile station monitoring the estimated transmission power control instruction signal and changing the rate of modification in the transmission power based on a setting of the number of consecutive transmission power control instruction signals that have different contents; and said mobile station controlling the transmission power of a signal to be transmitted based on the transmission power control instruction signal transmitted by said base station and the changed rate of modification in the transmission power. 6. A transmission power control method according to claim 5, further comprising: computing a reproduced value of fading through the computation of the sum of products of the transmission power control instruction signal transmitted by said base station and a current rate of modification in the transmission power; computing a predicted value of fading through prediction analysis of said reproduced value; and estimating the transmission power control instruction signal depending on whether the gradient of the predicted value of fading is positive or negative. 7. A transmission power control method in a radio communications system for communication between a base station and a mobile station, said method comprising: said base station detecting a received power of a signal transmitted by said mobile station and transmitting, to said mobile station, a transmission power control instruction signal to control the transmission power of said mobile station, along with a transmission signal, at regular periods; said mobile station receiving a current transmission power control instruction signal; said mobile station estimating the transmission power control instruction signal transmitted by said base station based on at least one prior received transmission power control instruction signal and a prior rate of modification in the transmission power corresp