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A Digital Processing Method of Handheld Instrument

A digital processing and instrument technology, applied in the field of digital processing of handheld instruments, can solve the problems of slow floating-point calculation, error, and DSP can't play, and achieve the effect of improving efficiency

Active Publication Date: 2018-07-20
CHNEGDU CHIFFO ELECTRONICS INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, the processing of digital signals is mostly processed by floating-point operations, but general floating-point operations may be very slow and have errors. In the case of today's huge digital signal processing capacity, it cannot meet the high requirements of digital signal processing. and analysis, resulting in the DSP not being able to play its fullest role

Method used

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  • A Digital Processing Method of Handheld Instrument
  • A Digital Processing Method of Handheld Instrument
  • A Digital Processing Method of Handheld Instrument

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Experimental program
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Effect test

Embodiment 1

[0025] Step 1. DMA receives the data to be analyzed collected by the down-converter and stores it in the DSP buffer; refer to image 3 , Figure 4 DMA is responsible for receiving the data collected and analyzed by the down-converter, storing it in the DSP buffer, and setting to receive the data collected by the down-converter; the peripheral data interface between the DMA and the down-converter is controlled through CPLD programming to meet the timing required by the DMA to receive data. Panel setting parameters are used as input, and the corresponding panel setting parameters are sent by DSP to ARM for transmitter testing and spectrum analysis; image 3 The middle MSG instruction causes the task to be suspended when there is no key to set the parameters, and to work when the command is received.

[0026] Step 2. The data to be analyzed in the DSP buffer described in step 1 exchanges data with the ARM end through DSPLINK; the DSPLINK establishes the buffer and buffer allocation re...

Embodiment 2

[0047] Digital processing devices such as figure 1 : Including: industrial processor; dual-core data interaction software; code development and debugging kit.

[0048] Industrial processor and dual-core data interaction software are mainly composed of the following parts in structure: including data acquisition, data processing, command reading, and data transmission

[0049] The industrial processor is an OMAP-L138 dual-core processor from Texas Instrument.

[0050] The dual-core data interaction software is DSPLINK of Texas Instrument.

[0051] The code development and debugging kit is CCS3.3 of Texas Instrument.

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Abstract

The invention discloses a digital processing method for a hand-held instrument and relates to a signal processing and analyzing technology. The main idea designed by the invention is established on the basis of an OMAP-L138 dual-core processor to realize data interaction of ARM and DSP by using high precision floating-point operational capability thereof and applying dual-core data interaction software DSPLINK of TI and finally realize FFT analysis and calculation of narrow-band power, modulation frequency offset and amplitude modulation depth. Simultaneously, a modular design method also has good reliability, expandability and compatibility.

Description

Technical field [0001] The invention relates to a signal processing and analysis technology, in particular to a digital processing method of a handheld instrument. Background technique [0002] At present, the processing of digital signals mostly uses floating-point operations, but general floating-point operations may be very slow and have errors. With the huge amount of digital signal processing today, it cannot meet the high-demand digital signal processing. And analysis, resulting in DSP not being able to play its maximum role. Summary of the invention [0003] The purpose of the present invention is to overcome the above-mentioned shortcomings in the prior art and provide a digital processing method for handheld instruments. The present invention combines the dual-core TI dual-core on the basis of the high-precision floating-point computing capability of the OMAP-L138 dual-core processor The data interaction software DSPLINK realizes the data interaction between ARM and DSP,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/302
Inventor 管邦伟钟洪念王繁
Owner CHNEGDU CHIFFO ELECTRONICS INSTR
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