This method transforms analog signals of resolver to digital signals using a novel resolver-digital converter AD2S1200.Working principle of AD2S1200 is analyzed and a practical communication interface solution of hardware and software between AD2S1200 and TMS320LF2407A is described in details.
A digital signal processing system was designed for the vortex fl ow meteres with a DSPs chip—TMS320LF2407A that possesses abundant peripherals on its chip, so this system is of small dimension and low cost.
This circuit adopted common opto-electronic coupler and classical difference-amplifying circuit,and it was used in the cell-type voltage source of the car′s sparking coil. It implemented the isolation between the output of PC′s digit signal and the input of charge′s analog signal,and got linear result of transition from 0～5V-digit voltage to 0～12V-analog voltage.
This scheme uses TDA8708 and SAA7196 of Philips corporation as the preceding end analog-digital conversion and video decoding chip, directly converts television signal into RGB signal, which is digit signal. The Field Programmable Gate Array (FPGA) works as the controller to send these digit signal into 128K×3Bytes frame buffer. The PCI interface chip PCI9054 can pick up useful data and deliver it to the host computer.
It is shown that this technique can form the basis for developing a detector unit that comprises a fast ADC and a digital signal processor and provides online identification of particles by scintillation pulse shape.
The device uses a broadband optical radiator and a miniature polychromator for a wavelength of ～800 nm as well as a digital signal-processing module based on an ADSP21062 processor.
Estimating the spectrum of a component of a digital signal containing an intense interference
A method of using a field programmable gate array and a digital signal processor in solving the problem of image processing in real-time computer vision systems is considered in detail.
It mainly consists of a velocity tracking loop and a digital signal processing auxiliary channel.