Sequence signal generator and sequence signal generation method
A sequence signal and generator technology, applied in digital function generators, instruments, electrical digital data processing, etc., can solve problems such as difficulty in increasing operating frequency
Active Publication Date: 2018-06-29
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology
For a clock frequency with a working frequency in the order of GHz, it is equivalent to nanosecond-level time precision, and it is very difficult to further increase the working frequency on this basis. Therefore, the high-speed clock method to generate square wave sequence signals is not suitable for higher precision sequence occasions application
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[0051] The sequence signal generator provided in the embodiment of the present application uses a first-stage delay unit and a second-stage delay unit with different single-stage delay times to sequentially delay the original sequence signal to obtain the target square wave sequence signal. By using an appropriate number of first-level delay units, it is possible to always use the less nonlinear part of the delay chain composed of second-level delay units, that is, to eliminate the more nonlinear part of the square wave sequence on the delay chain The influence of the time precision of the signal. Therefore, the time accuracy of the square wave sequence signal is improved.
[0052] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on...
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The invention provides a sequence signal generator and a sequence signal generation method. A communication module receives a waveform playback instruction sent by an upper computer; a waveform playback module acquires waveform data according to the waveform playback instruction, wherein the waveform data includes original square-wave sequence data and target square wave sequence data, and the target square wave sequence data includes a first-order delay parameter and a second-order delay parameter. The sequence signal generating method includes: acquiring an original square wave sequence signal according to the original square wave sequence data; a time delay module performing first-order delay processing on the original square wave sequence signal according to the first-order delay parameter to acquire an intermediate square wave sequence signal; then the time delay module performing second-order delay processing on the intermediate square wave sequence signal according to the second-order delay parameter to acquire the target square sequence signal. The delay unit with large delay time, use amount of second-order delay units is reduced, and a used delay chain is enabled to fallon the non-linear part. Therefore, time precision of generating the square waved sequence signals is improved.
Description
technical field [0001] The present application relates to the technical field of pulse signals, and more specifically relates to a sequence signal generator and a method for generating sequence signals. Background technique [0002] A serial signal is a serial signal that arranges a group of binary numbers 0 and 1 according to certain rules, and can be used as a synchronization signal, address code, data, control signal, etc. A sequencer is an instrument that generates a series of specific square wave sequence signals. [0003] In recent years, with the rapid development of electronic science and technology and related research fields, sequence signal generators have been widely used in cutting-edge scientific research fields such as aerospace, communication, automation control, electronic precision instruments, basic physics, and even medical biology. The high-precision square wave sequence signal can be used as a high-precision timing control, and can also be used as a hi...
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IPC IPC(8): G06F1/02
CPCG06F1/022
Inventor 秦熙张闻哲王淋仝煜荣星杜江峰
Owner UNIV OF SCI & TECH OF CHINA