TDC-based pulse carrier frequency detecting device and method
A technology of frequency detection and pulse carrier, which is applied in the field of measurement and radar, can solve the problems of low pulse frequency detection accuracy and complex implementation, and achieve the effect of improving frequency measurement accuracy, reducing frequency test cost, and improving accuracy
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Embodiment 1
[0049] The present invention is realized through the following technical solutions, as Figure 1-Figure 2 As shown, a TDC-based pulse carrier frequency detection device includes a signal conditioning unit, a band frequency division unit, a power and pulse envelope detection unit, a TDC unit, a power processing unit, and a signal processing unit. The signal conditioning unit, the band The frequency division unit, TDC unit, and signal processing unit are connected in sequence, the signal conditioning unit, power and pulse envelope detection unit, power processing unit, and signal processing unit are connected in sequence, and the band frequency division unit is connected to the signal processing unit.
[0050] It should be noted that, through the above improvements, the present invention proposes a TDC-based pulse carrier frequency detection device and method, the device includes a signal conditioning unit, a band frequency division unit, a power and pulse envelope detection unit...
Embodiment 2
[0054] This embodiment is further optimized on the basis of the above embodiments, such as figure 1 As shown, the frequency division unit of the band includes a frequency division unit of the low band and a frequency division unit of the high band, and the output ends of the signal conditioning unit are connected with the frequency division unit of the low band and the frequency division unit of the high band respectively, and the frequency division unit of the low band The output ends of the frequency unit are respectively connected to the TDC unit and the signal processing unit, and the output ends of the high-band frequency division unit are respectively connected to the TDC unit and the signal processing unit.
[0055] It should be noted that, through the above improvement, the frequency division unit of the band includes a frequency division unit of the high band and a frequency division unit of the low band, and the frequency division unit of the high band and the frequen...
Embodiment 3
[0059] This embodiment is further optimized on the basis of the above embodiments, such as figure 1 As shown, a comparator unit is also included, the output terminal of the power and pulse envelope detection unit is connected to the comparator unit, and the output terminal of the comparator unit is connected to the signal processing unit.
[0060] It should be noted that, through the above improvements, the power and pulse envelope detection unit performs accurate logarithmic detection on the measured signal coupled by the signal conditioning unit, and the detected signal is sent to the power processing unit and the comparator unit at the same time. The measured signal input to the signal conditioning unit is a pulse modulation signal or a continuous radio frequency signal, and the detection signal is sent to the power processing unit and the comparator unit at the same time. When the input signal to be tested is a continuous radio frequency signal, the detection signal is a d...
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