| 摘要 |
<p>PURPOSE:To obtain easily visible high definition radar image, by writing the largest level one when a plurality of video data corresponding to one cell to prevent partial missing in the marker indication in the writing of the cell. CONSTITUTION:When a new sweep generates, a coordinate converting section 1 sends out coordinate data and video data 15 to a coordinate memory 4 and a comparison control section 5 one at a time. The control section 5 reads out the video data 16 of the same coordinate from the memory 4 corresponding to the data 15 and sends out the data 15 to an interpolation processing section 2 when the data 15 is larger than that 16 as a result of comparison while the memory 4 is updated with the data 15. On the other hand, when the data 15 is smaller than that 16, the contents of the memory 4 is not updated. Moreover, when the same data as the data 15 does not exist in the memory 4, the data 15 is sent to the processing section 2 while being written into the memory 4. Thus, when a plurality of sweeps hit the same cell, the largest level of data is always written thereby preventing missed indication of markers.</p> |
