摘要:
In a radar with a non-uniformly spaced antenna array, an extractor estimates a number of arrivals of echoes to the antenna array. A setter sets a number of azimuths corresponding to a number of extracted peaks as a number of tested azimuths greater than the number of arrivals of echoes by a preset number. A determiner determines a level of correlations among steering vectors respectively corresponding to the tested azimuths. A selector selects, from the tested azimuths, azimuths as power-estimation targets based on the determined level of the correlations among the steering vectors. A first estimator estimates a received power level from each power-estimation target. A second estimator estimates, from the power-estimation targets, an azimuth of the target based on the estimated received power level from each power-estimation target. The estimated received power level from the azimuth is equal to or greater than a preset threshold level.
摘要:
In a system, a detecting module cyclically detects positional information of reflection points of received echoes. A sampling module cyclically samples, from the detected reflection points for each cycle, first and second reflection points. The first and second reflection points are expected to be reflection points of the respective first and second reflective portions of a moving object in front of the system. A first determining module determines whether a distance between the first and second reflection points varies over time. A second determining module determines that the first and second reflection points correspond to reflection points of the respective first and second reflective portions of a single moving object when it is determined that the distance between the first reflection point and the second reflection point is substantially invariant over time.
摘要:
In a system, a detecting module cyclically detects positional information of reflection points of received echoes. A sampling module cyclically samples, from the detected reflection points for each cycle, first and second reflection points. The first and second reflection points are expected to be reflection points of the respective first and second reflective portions of a moving object in front of the system. A first determining module determines whether a distance between the first and second reflection points varies over time. A second determining module determines that the first and second reflection points correspond to reflection points of the respective first and second reflective portions of a single moving object when it is determined that the distance between the first reflection point and the second reflection point is substantially invariant over time.
摘要:
In a radar with a non-uniformly spaced antenna array, an extractor estimates a number of arrivals of echoes to the antenna array. A setter sets a number of azimuths corresponding to a number of extracted peaks as a number of tested azimuths greater than the number of arrivals of echoes by a preset number. A determiner determines a level of correlations among steering vectors respectively corresponding to the tested azimuths. A selector selects, from the tested azimuths, azimuths as power-estimation targets based on the determined level of the correlations among the steering vectors. A first estimator estimates a received power level from each power-estimation target. A second estimator estimates, from the power-estimation targets, an azimuth of the target based on the estimated received power level from each power-estimation target. The estimated received power level from the azimuth is equal to or greater than a preset threshold level.
摘要:
Provided is a filter coefficient calculation method that calculates filter functions, each having (2n+1) rows and (2n+1) columns (n is an integer), the method including calculating a first filter function in accordance with a set value that is externally input, calculating an error between a total sum of values included in the first filter function and an ideal value of the total sum, supplying an odd error included in the error to a first origin coefficient that is located at a center of the first filter function as a first correction value if the error is an odd number, and supplying an even error to one of the first origin coefficient and a coefficient pair that is located symmetrically with respect to a point of the first origin coefficient as a second correction value, the even error being the error except the odd error.
摘要:
A recording apparatus comprising a recording portion for recording moving image data on a recording medium, a recording instruction portion for instructing start and temporary stop of recording the moving image data, a playlist processing portion for producing playlist data indicating a reproduction procedure of the moving image data of a plurality of clips recorded on the recording medium; and a control portion for displaying on a display device a representative image indicating each clip of the moving image data designated in the playlist during temporary stop of recording the moving image data.
摘要:
A recording apparatus comprising a recording portion for recording moving image data on a recording medium, a recording instruction portion for instructing start and temporary stop of recording the moving image data, a playlist processing portion for producing playlist data indicating a reproduction procedure of the moving image data of a plurality of clips recorded on the recording medium; and a control portion for displaying on a display device a representative image indicating each clip of the moving image data designated in the playlist during temporary stop of recording the moving image data.
摘要:
A granular bleach activator composition and a process for producing a granular bleach activator composition having excellent solubility and storability, which comprises using at least one member selected from the group consisting of substances (a), (b), (c) and (d) as a core particle and granulating the core particle and a powdery bleach activator in the presence of a water-soluble organic binder to give granules having a weight-average particle diameter of 100 to 3,000 .mu.m:(a) a water-soluble substance having a pH in a 3 wt. % aqueous solution thereof, of 2 to 10,(b) a borate-coated sodium percarbonate, the particle of which has an inner surface and/or an outer surface coated with the borate,(c) a borate-coated sodium perborate, the particle of which has an inner surface and/or an outer surface coated with the borate, and(d) sodium perborate other than the borate-coated sodium perborate (c).
摘要:
A recording apparatus comprising a recording portion for recording moving image data on a recording medium, a recording instruction portion for instructing start and temporary stop of recording the moving image data, a playlist processing portion for producing playlist data indicating a reproduction procedure of the moving image data of a plurality of clips recorded on the recording medium; and a control portion for displaying on a display device a representative image indicating each clip of the moving image data designated in the playlist during temporary stop of recording the moving image data.
摘要:
An electronic scanning radar apparatus has a cutting portion for cutting receiving data which is comprised of N numbers of data for each channel into two more short time data having M (