NI LabVIEW 2012 Digital Filter Design Toolkit Win32Eng LV2012DFDT数字滤波器设计工具包32位版

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NI LabVIEW 2012 Digital Filter Design Toolkit Win32Eng LV2012DFDT数字滤波器设计工具包32位版

数字滤波器工具包Digital Filter Design Toolkit，在LabVIEW安装时是不包含的，需要再单独下载安装。DFDT工具包在DFDT2017及以前的版本中，只有X86系统下的32位版本，从DFDT2018以后才有X64系统下的64位版本。如果需要使用64位的版本，请将LabVIEW环境升级到2018以后。

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DFDT2012

LabVIEW 2012 Digital Filter Design Toolkit Readme

Version 12.0.0

June 2012

This file contains information to introduce you to the LabVIEW Digital Filter Design Toolkit. This file also provides you with help resources you can use while working with the toolkit. The file contains the following information that you need to understand.

Overview

System Requirements

Installation Instructions

Known Issues

Accessing the Help

Finding Examples

Automating the Installation of NI Products

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Overview

The LabVIEW 2012 Digital Filter Design Toolkit is the upgrade version of the LabVIEW 2011 Digital Filter Design Toolkit. The Digital Filter Design Toolkit provides a collection of digital filter design tools to supplement the LabVIEW Full Development System. The Digital Filter Design Toolkit helps you design digital filters and filter banks without requiring you to have advanced knowledge of digital signal processing or digital filtering techniques. With the Digital Filter Design Toolkit, you can design and analyze floating-point and fixed-point digital filters and filter banks. You also can simulate fixed-point digital filters.

Without prior knowledge about programming in LabVIEW, you can use the Digital Filter Design Express VIs to interact graphically with filter specifications to design appropriate digital filters and filter banks.

The Digital Filter Design Toolkit provides VIs that you can use to design a digital finite impulse response (FIR) or infinite impulse response (IIR) filter, analyze the characteristics of the digital filter, change the implementation structure of the digital filter, and process data with the digital filter. In addition to the floating-point support, the Digital Filter Design Toolkit provides a set of VIs that you can use to create a fixed-point digital filter model, analyze the characteristics of the fixed-point digital filter, simulate the performance of the fixed-point digital filter, and generate fixed-point C code, integer LabVIEW code, or LabVIEW field-programmable gate array (FPGA) code for a specific fixed-point target.

The Digital Filter Design Toolkit includes VIs for floating-point multirate digital filter design. You can use the VIs to design a floating-point single-stage or multistage multirate filter, analyze the characteristics of the floating-point multirate filter, and process data with the floating-point multirate filter. In addition to the floating-point filter design, the toolkit also provides a set of VIs that you can use to create a fixed-point multirate filter, analyze the characteristics of the fixed-point multirate filter, simulate the behavior of the fixed-point multirate filter, and generate LabVIEW FPGA code from the fixed-point multirate filter for NI-RIO targets.

The Digital Filter Design Toolkit includes VIs that you can use to design and analyze filter banks. You can use the VIs to design a 2-band quadrature mirror filter (QMF) or M-band cosine-modulated filter bank, analyze the characteristics of a filter bank, decompose or reconstruct signals with filter banks, retrieve filter bank parameters, and create a filter bank from a prototype filter.

In addition to the graphical tools for digital filter design, the toolkit also provides Digital Filter Design MathScript RT Module functions that LabVIEW MathScript supports. These functions enable you to design filters in a text-based environment. You must install the LabVIEW MathScript RT Module to use the Digital Filter Design MathScript RT Module functions.

System Requirements

In addition to the system requirements for the LabVIEW Development System, the Digital Filter Design Toolkit has the following requirements:

• LabVIEW 2012 Full or Professional Development System (32-bit)
• At least 120 MB of disk space
  

Refer to the LabVIEW Readme for additional system requirements and supported operating systems for LabVIEW 2012.

Note:  If you want to use the Digital Filter Design Toolkit to generate LabVIEW FPGA code for a fixed-point digital filter, you must install the LabVIEW FPGA Module and NI-RIO software on the host computer. Ensure that you install the FPGA Module and NI-RIO software before you install the Digital Filter Design Toolkit. If you already installed the Digital Filter Design Toolkit, uninstall the Digital Filter Design Toolkit before installing the FPGA Module and NI-RIO software.

Installation Instructions

You can install all of your LabVIEW products—including the Digital Filter Design Toolkit—using the LabVIEW 2012 Platform DVDs. Refer to the LabVIEW Installation Guide on the LabVIEW Platform DVD 1 for installation instructions and system requirements.

To request additional LabVIEW Platform DVDs, refer to the National Instruments website.

Note:  If you purchased this product with an NI Software Suite or NI Product Bundle, use the installation media that shipped with your purchase to install this product.

Known Issues

You can access the software and documentation known issues list online. Refer to the National Instruments website for an up-to-date list of known issues in the Digital Filter Design Toolkit.

Accessing the Help

Refer to the LabVIEW Help, accessible by selecting Help»LabVIEW Help from LabVIEW, for information about the Digital Filter Design Toolkit.

Finding Examples

LabVIEW examples for the Digital Filter Design Toolkit are located in the labview\examples\Digital Filter Design folder. You can modify an example VI to fit an application, or you can copy and paste from one or more examples into a VI that you create.

You also can find example VIs using the NI Example Finder. Select Help»Find Examples to launch the NI Example Finder. You also can click the arrow on the Open button on the LabVIEW dialog box and select Examples from the shortcut menu to launch the NI Example Finder.

Use the Browse or Search page of the NI Example Finder to find an example VI. In the Browse page, the Digital Filter Design Toolkit examples are located in the Toolkits and Modules»Digital Filter Design folder.

Automating the Installation of NI Products

You can automate the installation of most NI products using command-line arguments to suppress some or all of the installer user interface and dialog boxes. However, starting with the August 2012 releases (products using NI Installers version 3.1 or later), you may need to perform additional steps before or during a silent installation of NI software.

If the NI product you are installing uses Microsoft .NET 4.0, the .NET installer may run before any NI software installs and may require a reboot before the installation of NI software begins. To avoid a .NET reboot, install .NET 4.0 separately before you install NI software.

For more information, refer to the following KnowledgeBase articles:

• For more information on silent installations of individual NI products, refer to KB 4CJDP38M, Automating the Installation of a Single Installer.
• For more information on silent installations of suited NI products, such as NI Developer Suite, refer to KB 4GGGDQH0, Automating the Installation of a Suited Installer.
• To determine what version of NI Installers your product contains, refer to KB 4CJDR18M, How Can I Determine the Type and Version of My National Instruments Installer?.
  

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Important Information

Copyright

© 2012 National Instruments. All rights reserved.

Under the copyright laws, this publication may not be reproduced or transmitted in any form, electronic or mechanical, including photocopying, recording, storing in an information retrieval system, or translating, in whole or in part, without the prior written consent of National Instruments Corporation.

National Instruments respects the intellectual property of others, and we ask our users to do the same. NI software is protected by copyright and other intellectual property laws. Where NI software may be used to reproduce software or other materials belonging to others, you may use NI software only to reproduce materials that you may reproduce in accordance with the terms of any applicable license or other legal restriction.

End-User License Agreements and Third-Party Legal Notices

You can find end-user license agreements (EULAs) and third-party legal notices in the following locations:

• Notices are located in the \_Legal Information and directories.
• EULAs are located in the \Shared\MDF\Legal\license directory.
• Review \_Legal Information.txt for information on including legal information in installers built with NI products.
  

Trademarks

LabVIEW, National Instruments, NI, ni.com, the National Instruments corporate logo, and the Eagle logo are trademarks of National Instruments Corporation. Refer to the Trademark Information at ni.com/trademarks for other National Instruments trademarks.

Other product and company names mentioned herein are trademarks or trade names of their respective companies.

Patents

For patents covering the National Instruments products/technology, refer to the appropriate location: Help» Patents in your software, the patents.txt file on your media, or the National Instruments Patent Notice at ni.com/patents.