Detector
A technology of detectors and analog-to-digital converters, applied in the field of detectors, can solve the problems of increasing digital signal processing, reducing signal-to-noise ratio, and difficult digital program processing, so as to avoid interference, reduce power consumption, and reduce noise less detractable effect
Active Publication Date: 2016-10-26
RICHWAVE TECH CORP
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Problems solved by technology
[0002] Generally speaking, a detector that uses the Doppler effect to detect the movement of the object under test needs to provide a high-frequency input signal through a high-frequency oscillation source to update the movement of the object under test. Most of the digital processing is done by analog processing, so semiconductor components are extremely susceptible to flicker noise, which seriously degrades the signal noise ratio and increases the subsequent digital signal processing (DSP) ) difficulty
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[0067] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, the present invention should be understood as not limited to such embodiments described below, and the technical idea of the present invention can be implemented in combination with other known technologies or other technologies having the same functions as those known technologies.
[0068] In the description of the following specific embodiments, in order to clearly demonstrate the structure and working mode of the present invention, many directional words will be used to describe, but "front", "rear", "left", "right", "outer Words such as ", "inwardly", "outwardly", "inwardly", "axially" and "radially" are to be understood as convenient terms and should not be understood as limiting terms.
[0069] figure 1is a schematic diagram of a detector provided by an embodiment of the present invention. The detector 100 includes an oscilla...
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The invention discloses a detector including an oscillation source, a frequency multiplier, a transceiver and a demodulator. The oscillation source generates a first injection signal with a first frequency. The frequency multiplier receives the first injection signal, outputs an output signal and receives a second injection signal with a second frequency. The frequency multiplier uses injection locking to lock a frequency of the output signal at a multiple of the first frequency, and uses injection pulling to pull the frequency of the output signal to the second frequency. The transceiver transmits the output signal and receives a received signal with a third frequency for updating the second injection signal. The demodulator performs a demodulation operation according to the output signal so as to generate a displacement signal.
Description
technical field [0001] The present invention relates to a detector, in particular to a detector comprising a frequency multiplication unit to inject and pull to generate an output signal. Background technique [0002] Generally speaking, a detector that uses the Doppler effect to detect the movement of the object under test needs to provide a high-frequency input signal through a high-frequency oscillation source to update the movement of the object under test. Most of the digital processing is done by analog processing, so semiconductor components are extremely susceptible to flicker noise, which seriously degrades the signal noise ratio and increases the subsequent digital signal processing (DSP) ) difficulty. In addition, since the oscillation source works at high frequency (for example, about 10G Hz), it is difficult to lower the frequency, so the power consumption of the oscillation source is difficult to reduce. Therefore, there is a real need in the art for a soluti...
Claims
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IPC IPC(8): H04B17/30
CPCH04B17/30G01S7/35H03B19/14H03B2200/0074H03B2200/0082H03B2200/0088G01S7/034G01S13/536H04B1/10H04L1/0053H03L7/099H03L7/0802
Inventor 陈则朋
Owner RICHWAVE TECH CORP