A local oscillator signal detection device
A local oscillator signal and detection device technology, applied in the field of measurement and control, can solve problems such as the inability to detect local oscillator signals of radar receivers
Active Publication Date: 2016-02-17
BEIJING AEROSPACE MEASUREMENT & CONTROL TECH
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[0003] The technical problem to be solved by the present invention is to provide a local oscillator signal detection device to solve the problem in the prior art that it is impossible to detect whether the local oscillator signal of the radar receiver is applied correctly
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[0018] The present invention provides an authentication method and device for a ubiquitous terminal network. The present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0019] Such as figure 1 As shown, the embodiment of the present invention provides a local oscillator signal detection device 5, including: a fault determination device 2 and at least one mixing detection channel 1, each mixing detection channel 1 includes: a first sampling part 11, and a first The first local oscillator signal V1 of a mixer 12 is connected to convert the first local oscillator signal V1 into a first detection signal V1test; the first comparison part 13 is connected to the first sampling part 11 and is used to convert the first local oscillator signal V1test to the first detection signal V1te...
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The invention provides a detecting device for a local oscillator signal. The detecting device comprises a fault determination device and at least a mixed-frequency detection channel, wherein each mixed-frequency detection channel comprises a first sampling part connected to a first local oscillator signal of a first frequency mixer and used for converting the first local oscillator signal into a first detecting signal, a first comparing part connected to the first sampling part and used for comparing the first detecting signal with a first reference voltage, a second sampling part connected to a second local oscillator signal of a second frequency mixer and used for converting the second local oscillator signal different from the first local oscillator signal into a second detecting signal, and a second comparing part connected to the second sampling part and used for comparing the second detecting signal with a second reference voltage; the fault determination device is connected to the first comparing part and the second comparing part respectively and is used for determining whether the first local oscillator signal or the second local oscillator signal is in fault.
Description
technical field [0001] The invention relates to the technical field of measurement and control, in particular to a local oscillator signal detection device. Background technique [0002] With the continuous development of radar technology, the radar system puts forward higher and higher requirements for the reliability of the receiver. The mixer is the core of the radar receiver, and its reliability is particularly important. At present, most radar receiver systems The mixer in the circuit adopts single-tube mixing technology, that is, a technology that relies on a single mixing diode to realize the frequency conversion function of radio frequency signals and local oscillator signals. For the mixer in the receiver, whether the local oscillator signal can be correctly applied directly affects the working performance of the mixer, and there is no one in the prior art to detect whether the local oscillator signal of the radar receiver is correctly applied Technology. Content...
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IPC IPC(8): G01S7/40
CPCG01S7/4021
Inventor 孟亮王晴韦志会潘国庆郇黎明王琮祁玉林庄会慧段嵘
Owner BEIJING AEROSPACE MEASUREMENT & CONTROL TECH