Programmable method and test device for generating target for FMCW radar
First Claim
1. A test device for a programmable frequency modulated continuous wave (FMCW) radar, comprising:
- a central control unit for monitoring the FMCW radar, being comprised of a host computer and a digital signal processing (DSP) module having a digital signal processor, wherein the central control unit can control the test device to simulate the dynamic state of a target according to a plurality of setting parameters when the FMCW radar transmits a frequency modulate continuous wave to search for the target, and then the central control unit will generate an echo signal and transmit the echo signal to the FMCW radar;
a first digital signal synthesizer coupled to the central control unit for generating a first intermediate frequency signal according to the setting in the central control unit and a reference clock signal; and
a transmitting unit coupled to the first digital signal synthesizer for receiving the first intermediate frequency signal and generating the echo signal, wherein the test device is characterized in that the frequency modulate continuous wave has a second intermediate frequency that is generated in accordance with the reference clock signal, the digital signal processor receives a triggering signal from the FMCW radar when the FMCW radar transmits the FMCW and output timing for generating the echo signal after a delay time defined from the transmission of the frequency modulated continuous wave from the FMCW radar to the reception of the echo signal, and in different simulations, the different echo signals are transmitted after different delay times.
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Abstract
A test device for a frequency modulated continuous wave (FMCW) radar is provided. The test device has a central control unit for monitoring the FMCW radar. When the FMCW radar transmits a frequency modulated continuous signal to search for a target, the central control unit of the test device in present invention will simulate the motion of the target according to a plurality of setting parameters and generate an echo signal to the FMCW radar. The present invention also includes a first digital signal synthesizer and a transmitting unit. The first digital signal synthesizer is coupled to the central control unit for generating and transmitting an intermediate-frequency signal to the transmitting unit according to the settings in the central control unit and a reference clock. The transmitting unit generates the echo signal according to the intermediate-frequency signal.
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Citations
20 Claims
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1. A test device for a programmable frequency modulated continuous wave (FMCW) radar, comprising:
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a central control unit for monitoring the FMCW radar, being comprised of a host computer and a digital signal processing (DSP) module having a digital signal processor, wherein the central control unit can control the test device to simulate the dynamic state of a target according to a plurality of setting parameters when the FMCW radar transmits a frequency modulate continuous wave to search for the target, and then the central control unit will generate an echo signal and transmit the echo signal to the FMCW radar; a first digital signal synthesizer coupled to the central control unit for generating a first intermediate frequency signal according to the setting in the central control unit and a reference clock signal; and a transmitting unit coupled to the first digital signal synthesizer for receiving the first intermediate frequency signal and generating the echo signal, wherein the test device is characterized in that the frequency modulate continuous wave has a second intermediate frequency that is generated in accordance with the reference clock signal, the digital signal processor receives a triggering signal from the FMCW radar when the FMCW radar transmits the FMCW and output timing for generating the echo signal after a delay time defined from the transmission of the frequency modulated continuous wave from the FMCW radar to the reception of the echo signal, and in different simulations, the different echo signals are transmitted after different delay times. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A programmable method for generating target for frequency modulated continuous wave (FMCW) radar suitable for a test device having a central control terminal, the testing method comprising the steps of:
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performing an initialization operation; reading a plurality of setting parameters from the central control terminal; setting the test device according to the setting parameters so that the dynamic state of a target can be simulated; transmitting an echo signal to the FMCW radar according to the state of the simulated target when the FMCW radar transmits a frequency modulated continuous wave searching for the target, wherein the echo signal and the frequency modulated continuous wave are a first intermediate frequency signal and a second intermediate frequency signal, respectively, which are generated according to a reference clock signal; renewing the setting parameters; and capturing the resulting judgment generated by the FMCW radar through a simulation on the target and using the judgment to adjust the FMCW radar, wherein the programmable method is characterized in that the central control terminal is comprised of a host computer and a digital signal processing module having a digital signal processor, the digital signal processor receives a triggering signal from the FMCW radar when the FMCW radar transmits the FMCW and output timing for generating the echo signal after a delay time defined from the transmission of the frequency modulated continuous wave from the FMCW radar to the reception of the echo signal, and in different simulations, the different echo signals are transmitted after different delay times. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification