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1. 发明公开

EP0068852A3 A method and an apparatus for treating range and direction information data 失效
标题翻译：一种处理范围和方向信息数据的方法和装置
公开(公告)号：EP0068852A3
公开(公告)日：1984-04-18
申请号：EP82303344
申请日：1982-06-25
申请人： A/S Kongsberg Väpenfabrikk
发明人： Fossan, Magne , Pohner, Freddy , Abelsen, Ole Johan , Torkilseng, Tor Arne
IPC分类号： G01S07/10 , G01S07/44
CPC分类号： G01S7/298 , G01S7/10
摘要： Analog video information from a radar antenna rotating once each 2 seconds and emitting 2000 pulses per second is digitized by an A/D converter (15) which feeds a sweep memory (16) comprising 1024 range cells each storing one pixel. The analog antenna bearing 0 is digitized by a synchro/digital converter (19) and its sine and cosine fetched from a ROM table and supplied to X and Y rate multipliers (18) whose other input is a constant frequency. The pixels in the sweep memory (16) are written to X and Y coordinate addresses, determined from their range and bearing coordinates by the rate multipliers, in an intermediate storage block memory (17). Of the 4.096.000 pixels per antenna rotation, a central processor unit (20), operating in accordance with an algorithm, writes only 1048576 final pixels, four at a time, to a radar display refresh memory (3, 21) from which these pixels, in cartesian coordinate format, are transferred in page mode through a line buffer (30) to a D/A video output unit (5) and thence to a monitor (4) which provides a raster scan display of 1024 x 1024 pixels corresponding to the PPI information produced by the antenna. In controlling the transfer of pixels from the block memory (17) to the radar display refresh memory (3, 21), the central processor unit (20) forms and uses a table of memory block addresses associated with 4096 possible antenna bearing values, each memory block occurring once only in the table.
摘要翻译：来自每2秒旋转一次并且每秒发射2000个脉冲的雷达天线的模拟视频信息被A / D转换器（15）数字化，该A / D转换器（15）馈送包括1024个范围单元的扫描存储器（16），每个存储一个像素。模拟天线轴承DIAMETER由同步/数字转换器（19）数字化，其正弦和余弦从ROM表中提取，并提供给其他输入为恒定频率的X和Y速率乘法器（18）。扫描存储器（16）中的像素被写入X和Y坐标地址，由它们的范围和轴承坐标由速率倍增器确定在中间存储块存储器（17）中。在每个天线旋转的4.090.000个像素中，根据算法操作的中央处理器单元（20）仅将1048576个最终像素（每次四个）写入雷达显示刷新存储器（3,21），从这些以笛卡尔坐标格式的像素通过行缓冲器（30）以页模式传送到D / A视频输出单元（5），然后传送到监视器（4），监视器（4）提供对应于1024×1024像素的光栅扫描显示到由天线产生的PPI信息。在控制从块存储器（17）到雷达显示刷新存储器（3,21）的像素传输时，中央处理器单元（20）形成并使用与4096个可能的天线承载值相关联的存储块地址表，内存块只发生在表中。

2. 发明公开

EP0068852A2 A method and an apparatus for treating range and direction information data 失效
标题翻译：方法以及用于处理范围和方向数据的设备。
公开(公告)号：EP0068852A2
公开(公告)日：1983-01-05
申请号：EP82303344.4
申请日：1982-06-25
申请人： A/S Kongsberg Väpenfabrikk
发明人： Fossan, Magne , Pohner, Freddy , Abelsen, Ole Johan , Torkilseng, Tor Arne
IPC分类号： G01S7/10 , G01S7/44
CPC分类号： G01S7/298 , G01S7/10
摘要： Analog video information from a radar antenna rotating once each 2 seconds and emitting 2000 pulses per second is digitized by an A/D converter (15) which feeds a sweep memory (16) comprising 1024 range cells each storing one pixel. The analog antenna bearing 0 is digitized by a synchro/digital converter (19) and its sine and cosine fetched from a ROM table and supplied to X and Y rate multipliers (18) whose other input is a constant frequency. The pixels in the sweep memory (16) are written to X and Y coordinate addresses, determined from their range and bearing coordinates by the rate multipliers, in an intermediate storage block memory (17). Of the 4.096.000 pixels per antenna rotation, a central processor unit (20), operating in accordance with an algorithm, writes only 1048576 final pixels, four at a time, to a radar display refresh memory (3, 21) from which these pixels, in cartesian coordinate format, are transferred in page mode through a line buffer (30) to a D/A video output unit (5) and thence to a monitor (4) which provides a raster scan display of 1024 x 1024 pixels corresponding to the PPI information produced by the antenna. In controlling the transfer of pixels from the block memory (17) to the radar display refresh memory (3, 21), the central processor unit (20) forms and uses a table of memory block addresses associated with 4096 possible antenna bearing values, each memory block occurring once only in the table.
摘要翻译：从雷达天线旋转一次每2秒发射每秒2000个脉冲的模拟视频信息是通过在A / D转换器（15），该馈送距离扫掠存储器（16）包括1024个单元格区域每个存储一个像素进行数字化。模拟天线轴承直径通过一个同步/数字转换器（19）和其正弦和余弦取出从ROM表进行数字化并提供给X和Y速率乘法器（18）的另一个输入是一个恒定的频率。在扫掠存储器（16）中的像素被写入到X和Y坐标地址，由速率乘法器确定性开采从它们的距离和方位坐标，在中间存储块memoy（17）。每个天线旋转4090000个像素，中央处理单元（20）在算法与雅舞蹈操作时，在一个时间只写入1048576最后像素，四个，从中论文雷达显示器刷新存储器（3，21）像素，在笛卡尔坐标格式，经由行缓冲器（30）转入在页模式下的D / A视频输出单元（5）并从那里到监视器（4），其提供的1024 x 1024个像素相对应的光栅扫描显示由天线产生的PPI信息。在控制象素的从块存储器（17）传送到雷达显示器刷新存储器（3，21），所述中央处理单元（20）的形式和使用具有4096种可能天线轴承值，每个相关联的存储块地址的表存储块只在表中发生一次。

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