发明名称 |
DIGITAL RADAR OR SONAR APPARATUS |
摘要 |
A radar or sonar system amplifies the signal received by an antenna of the radar system or a transducer of the sonar system is amplified and then subject to linear demodulation by a linear receiver. There may be an anti-aliasing filter and an analog-to-digital converter between the amplifier and the linear receiver. The system may also have a digital signal processor with a network stack running in the processor. That processor may also have a network interface media access controller, where the system operates at different ranges, the modulator may produce pulses of two pulse patterns differing in pulse duration and inter-pulse spacing, those pulse patterns are introduced and used to form two radar images with the two images being derived from data acquired in a duration not more than twenty times larger than the larger inter-pulse spacing, or for a radar system, larger than one half of the antenna resolution time. One or more look-up tables may be used to control the amplifier. The radar system may generate digital output which comprises greater than eight levels of radar video. |
申请公布号 |
WO2009027693(A2) |
申请公布日期 |
2009.03.05 |
申请号 |
WO2008GB02935 |
申请日期 |
2008.08.29 |
申请人 |
RAYMARINE UK LIMITED;JALES, RICHARD;LAWRENCE, ANDREW;MAINDROU, MATTHIEU |
发明人 |
JALES, RICHARD;LAWRENCE, ANDREW;MAINDROU, MATTHIEU |
分类号 |
G01S7/285 |
主分类号 |
G01S7/285 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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