Patents
Literature
2 results about "Direct digital synthesizer" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Direct digital synthesis (DDS) is a method employed by frequency synthesizers used for creating arbitrary waveforms from a single, fixed-frequency reference clock. DDS is used in applications such as signal generation, local oscillators in communication systems, function generators, mixers, modulators, sound synthesizers and as part of a digital phase-locked loop.
A multi-mode noise jamming signal generation method and system
The present application relates to a kind of multi-mode noise interference signal generation method, belong to signal interference technical field, solve the problem that existing cannot dynamically flexibly generate the interference signal of multiple modulation modes and the high development complexity.For method includes: according to noise kind and interference mode, obtain first noise sequence, second noise sequence, third noise sequence, noise interference bandwidth and center frequency;Carrier signal is generated based on center frequency;First noise sequence and noise interference bandwidth are passed into first multiplier, then the output result and carrier signal are passed into adder, and first complex signal is output by direct digital synthesizer;First complex signal and second noise sequence are passed into complex multiplier, and second complex signal is output;Second complex signal and third noise sequence are passed into second multiplier, and noise interference signal is output.The generation of multi-mode noise interference signal dynamically flexibly is realized.
Owner:BEIJING HUAHANG RADIO MEASUREMENT & RES INST
A nanosecond pulsed laser driving control device and method
PendingCN122267609AExcitation process/apparatusNanosecondNanosecond pulse
The application discloses a nanosecond pulse laser driving control device and method, relates to the technical field of nanosecond pulse lasers, and comprises a main control module connected with a digital-analog conversion module, a direct digital synthesizer module, a reference operation and current monitoring module, a signal output selection module and a signal coupling and current monitoring module respectively; the reference operation and current monitoring module is connected with the digital-analog conversion module; a pulse signal generation and conditioning module is connected with the direct digital synthesizer module and the signal output selection module respectively; the signal coupling and current monitoring module is connected with the signal output selection module; the reference operation and current monitoring module and the signal coupling and current monitoring module are connected with a target nanosecond pulse laser, and the application can improve the stability and reliability in the driving control process of the target nanosecond pulse laser.
Owner:ZHUHAI GUANGHENG TECH CO LTD