Burst-parameter-variable signal generator and cycle-number-variable signal generator
A technology of signal generator and cycle number, which is applied in the direction of single output arrangement, etc., can solve the problems that the burst time interval is not fixed, cannot meet the application occasion, lacks the burst time interval signal generator, etc., and achieves the effect of broadening the application range
Active Publication Date: 2015-06-24
SUZHOU RIGOL PRECISION ELECTRIC TECH
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Problems solved by technology
The time interval T between two effective trigger signals is the burst time interval, the number of waveforms C is the number of burst cycles, and the trigger source can be an external trigger signal or an internal trigger signal. When an external trigger signal is selected, the burst time interval It is determined by the external trigger signal. When the internal trigger signal is selected, the burst time interval can be set by the user. In the existing burst signal generator, the user can only set one burst time interval, that is, the burst time interval is unchanged, but In some application environments, such as radar monitoring aircraft, the reflected signal of the aircraft is from far to near, or from near to far, that is, the burst time interval is not fixed, so the burst function of the existing signal generator cannot satisfy some complex application environments
Moreover, in the existing signal generators, the number of burst cycles is also fixed, which cannot satisfy many applications.
[0004] As mentioned above, there is a lack of a signal generator with variable burst time interval and burst cycle number in the prior art
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Embodiment 2
[0058] The difference between Embodiment 2 and Embodiment 1 is that the internal trigger unit 703 only generates an internal trigger signal according to a fixed burst time interval, and the cycle number unit 705 generates multiple accumulation enable signals 718 according to an internal trigger signal. , the final waveform generation unit 704 generates a burst waveform 713 with only a variable number of cycles. The implementation methods of other units in Embodiment 2 are basically the same as those in Embodiment 1, and can be referred to each other.
[0059] The signal generator of the present invention generates a plurality of internal trigger signals by counting a plurality of burst time intervals with a system clock, thereby realizing the generation of multi-segment burst waveforms according to different internal trigger signals, and satisfying the user's segmental burst requirements. demand, and can also set a number of different cycle numbers, by counting, the output cyc...
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The invention discloses a burst-parameter-variable signal generator which comprises a clock unit, a control unit, an inner trigger unit and a waveform generation unit. The clock unit is used for generating a system clock. The control unit is used for receiving N different burst time intervals input from the outer portion, wherein N is larger than 1. The inner trigger unit is used for generating N inner trigger signals according to the N burst time intervals and the system clock. The waveform generation unit is used for generating burst waveforms according to the N inner trigger signals. In order to solve the technical problem that in the prior art, burst time intervals are fixed, the signal generator can meet the requirements of users for segmented burst, multiple burst time intervals can be set, and the burst waveforms are output in a segmented mode according to all the time intervals.
Description
technical field [0001] The invention relates to the field of test and measurement, in particular to a signal generator with variable burst parameters and a burst signal generator with variable cycle number. Background technique [0002] As a signal source, a signal generator is widely used in the measurement, calibration and maintenance of electronic systems because it can generate regular or irregular waveforms with different frequencies and different amplitudes. With the development of electronic chip integration, signal generators based on Direct Digital Synthesis (DDS) technology and programmable logic array (FPGA) technology have rich functions, such as set function generator, arbitrary waveform generator, etc. generator, pulse generator, harmonic generator, analog / digital modulator, frequency sweep generator, burst signal generator and other functions in one. [0003] Burst function, also known as "pulse train" function or "Burst" function, refers to the function of o...
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Inventor 丁新宇王悦王铁军李维森
Owner SUZHOU RIGOL PRECISION ELECTRIC TECH