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This paper presents a method for measuring 3D environment by a tracked vehicle robot using a laser range finder (LRF) with an arm-type movable unit. The unit is mounted on the robot and the LRF is installed at the end of the unit. This sensing system enables the sensor to change position and to face at a right angle to a variety of configuration. Because of(More)
Gradient descent bit-flipping (GDBF) algorithm achieves good error performance for decoding low density parity check codes. In the GDBF algorithm, a search point is apt to be trapped in a local optimum, which causes performance degradation of the GDBF algorithm. To overcome this issue, the noisy GDBF algorithm introduces random perturbation into the(More)
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