Signal analyzer and device and processing method
A signal analyzer and digital signal processing technology, applied in the direction of measuring devices, instruments, measuring electronics, etc., can solve the problems of inability to analyze signals in real time and on-line analysis, and low measurement accuracy
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Embodiment 1
[0034] This example is a digital signal device such as figure 1 , 2, 3, the device includes a digital signal processing unit 101, when the digital signal is input, determine the corresponding threshold value of the input digital signal, and convert the input digital signal level to the level of the central processing unit according to the determined corresponding threshold value required level, the digital signal processing unit 101 includes an automatic matching module 104, which is used to identify threshold values of digital signals of different amplitudes, and converts the input digital signal to a TTL level, which includes a first protection circuit 105, a first filter Circuit 106, signal shaping circuit 107 and digital-to-analog conversion circuit 108, the first protection circuit 105 is used to carry out overvoltage protection and electrostatic protection to the input signal, the first filter circuit 106 is used to filter the high-frequency interference in the input s...
Embodiment 2
[0039] This example is an analog signal device such as figure 1 , 2 , 4, and 5, including an analog signal processing unit 102, which is used for inputting the analog signal after the analog signal processing unit manually selects the corresponding coupling mode of the input analog signal according to the determined corresponding coupling mode. To amplify the voltage required for analog-to-digital conversion, the analog signal processing unit 102 includes a signal conditioning module 110, which is used to collect and condition analog signals, and output to the analog-to-digital conversion module, which includes a second protection circuit 111, a second filter circuit 112, a coupling The mode selection circuit 113 and the gain adjustment circuit 114, the second protection circuit 111 is used for overvoltage protection and electrostatic protection of the input signal, the second filter circuit is used for filtering high-frequency interference in the input signal, and the couplin...
Embodiment 3
[0044] This example is a signal analyzer such as figure 1 , 2 , 3, 4, and 5, including a digital signal processing unit 101, used to determine the corresponding threshold value of the input digital signal when the digital signal is input, and convert the input digital signal level to The level required by the central processing unit, the digital signal processing unit 101 includes an automatic matching module 104, which is used to identify the threshold value of digital signals of different amplitudes, and converts the input digital signal to TTL level, which includes a first protection circuit 105 , a first filter circuit 106, a signal shaping circuit 107 and a digital-to-analog conversion circuit 108, the first protection circuit 105 is used for overvoltage protection and electrostatic protection of the input signal, and the first filter circuit 106 is used for filtering the high frequency in the input signal Interference, the signal shaping circuit 107 is used to compare t...
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