Commercially available active noise control headphones rely on fixed analog controllers to drive "anti-noise" loudspeakers. Our design uses an adaptive controller to optimally cancel unwanted acoustic noise. This headphone would be particularly useful for workers who operate or work near heavy machinery and engines because the noise is selectively eliminated. Desired sounds, such as speech and warning signals, are left to be heard clearly. The adaptive control algorithm is implemented on a Texas Instruments (TI™ ) 1 TMS320C30GEL digital signal processor (DSP), which drives a Sony CD550 headphone/microphone system. Our experiments indicate that adaptive noise control results in a dramatic improvement in performance over fixed noise control. This improvement is due to the availability of high-performance programmable DSPs and the self-optimizing and tracking capabilities of the adaptive controller in response to the surrounding noise.
資源簡介：Commercially available active noise control headphones rely on fixed analog controllers to drive "anti-noise" loudspeakers. Our design uses an adaptive controller to optimally cancel unwanted acoustic noise. This headphone would be particul...
上傳時(shí)間： 2013-12-04
上傳用戶：dyctj
資源簡介：Summary Many control applications require converting some analog input to a digital format. The ADCINC12 User Module is a general-purpose, 12-bit analog to digital converter (ADC) that does just that. This Application Note is meant to be...
上傳時(shí)間： 2013-12-01
上傳用戶：WMC_geophy
資源簡介：ABSTRACTThe flyback power stage is a popular choice for single and multiple output dc-to-dc converters at powerlevels of 150 Watts or less. Without the output inductor required in buck derived topologies, such as theforward or push-pull con...
上傳時(shí)間： 2021-11-24
上傳用戶：kingwide
資源簡介：Lotus Notes開發(fā)用的在線DHTML編輯器,基于Active X control 1. This rich text editor is based on the editor used in an older sandbox posting I found. The majority of this code was NOT written by me. Credit goes to someone at Lotus (I think) ...
上傳時(shí)間： 2016-11-27
上傳用戶：kr770906
資源簡介：tty驅(qū)動(dòng) * This driver shows how to create a minimal tty driver. It does not rely on * any backing hardware, but creates a timer that emulates data being received * from some kind of hardware.
上傳時(shí)間： 2013-12-04
上傳用戶：金宜
資源簡介：water temperature control system uses the Single Chip Microcomputer to carry on temperature real-time gathering and controling. DS18B20, digitized temperature sensor, provides the temperature signal by "a main line". In -10～+85℃ the scope...
上傳時(shí)間： 2015-12-10
上傳用戶：nairui21
資源簡介：blue-usu: (Search, Connect, Playback, Record) with bluetooth devices like headset. Rely on usu driver specialized for usb-bluetooth dongle. Use GPL license.
上傳時(shí)間： 2016-06-24
上傳用戶：lizhizheng88
資源簡介：The P89LPC938 is a single-chip microcontroller, available in low cost packages, based on a high performance processor architecture that executes instructions in two to four clocks, six times the rate of standard 80C51 devices. Many system...
上傳時(shí)間： 2013-12-04
上傳用戶：遠(yuǎn)遠(yuǎn)ssad
資源簡介：LED control in VB on WinCE for S3C2440
上傳時(shí)間： 2016-09-28
上傳用戶：xiaohuanhuan
資源簡介：Spider Robot 8-legs cooperative walking velocity control strategy based on enviromental information
上傳時(shí)間： 2014-02-13
上傳用戶：jichenxi0730
資源簡介：amer s noise level estimation implementation on MATLAB
上傳時(shí)間： 2014-01-02
上傳用戶：sdq_123
資源簡介：c pgm to find redundant paths in a graph.Many fault-tolerant network algorithms rely on an underlying assumption that there are possibly distinct network paths between a source-destination pair. Given a directed graph as input, write a prog...
上傳時(shí)間： 2013-12-18
上傳用戶：jkhjkh1982
資源簡介：control system book on economics pa.....................................
上傳時(shí)間： 2014-01-02
上傳用戶：coeus
資源簡介：barcode component The sourcecode does not rely on any language specific features. It will probably compile under Delphi 8 and higher. Kylix ? barcode component does not use any special Windows API functions so it should wor...
上傳時(shí)間： 2017-07-08
上傳用戶：372825274
資源簡介：SDP, Service Delivery Platform, is more for telecom operators who want to manage the Data Service better delivered to the end device users by bridging with back-end content providers. Operators rely on the content provider to create & distr...
上傳時(shí)間： 2016-03-10
上傳用戶：zycidjl
資源簡介：SDP, Service Delivery Platform, is more for telecom operators who want to manage the Data Service better delivered to the end device users by bridging with back-end content providers. Operators rely on the content provider to create & distr...
上傳時(shí)間： 2013-12-03
上傳用戶：yph853211
資源簡介：To fully utilize the available spectrum for a wireless communication system it is feasible to adapt to different situations on the channel. In this paper a flexible OFDM transmitter is presented together with basic theory behind OFDM tr...
上傳時(shí)間： 2016-03-23
上傳用戶：BOBOniu
資源簡介：This file include the normalized LMS algorithm and subband LMS algorithm. all of them are in m.file This file can be used to echo noise cancellation, and active noise control
上傳時(shí)間： 2014-02-06
上傳用戶：czl10052678
資源簡介：This book is about using Python to get jobs done on Windows.This intended to be a practical book focused on tasks. It doesn t aim to teach Python programming, although we do provide a brief tutorial. Instead, it aims to cover:How Python wor...
上傳時(shí)間： 2015-05-10
上傳用戶：ddddddos
資源簡介：The intent of the software contained on this CD is to provide support for the material covered in the textbook. All programs have been developed and tested using MATLAB Version 5.2. Although the authors believe that all routines should be c...
上傳時(shí)間： 2015-07-11
上傳用戶：離殤
資源簡介：The intent of the software contained on this CD is to provide support for the material covered in the textbook. All programs have been developed and tested using MATLAB Version 5.2. Although the authors believe that all routines should be c...
上傳時(shí)間： 2013-12-30
上傳用戶：wweqas
資源簡介：Test program to loop on Successive Approximation A-to-D conversion. Allows digital codes and resulting DAC output to be viewed on scope.
上傳時(shí)間： 2015-08-07
上傳用戶：頂?shù)弥?/p>
資源簡介：Abstract：Noise frequency modulation(FM)jamming。which belongs to blanket jamming。is already become the main form ofnoise jamming at present。because the wideband was gained by it．Tne spectnlnl ofnoise FM jamming is analyzed by time dom...
上傳時(shí)間： 2015-10-17
上傳用戶：lijinchuan
資源簡介：This application creates an USB Mass Storage drive on a host computer. The drive is created from the internal Flash or external SDRAM memory of the evaluation kit.
上傳時(shí)間： 2014-01-18
上傳用戶：xymbian
資源簡介：For additional help on JSP, be sure to check out the JSP FAQ at jGuru. Quiz: Struts in Action. Test what you learned about struts in this online quiz. ...
上傳時(shí)間： 2013-12-23
上傳用戶：cursor
資源簡介：Audio driver. This audio driver is developed on lpc2368.This used to develop audio system on LPC23xx
上傳時(shí)間： 2013-11-26
上傳用戶：qiaoyue
資源簡介：this is texture analyzer code to segment an image replying on the texture feature,it is programmed in java
上傳時(shí)間： 2013-12-09
上傳用戶：koulian
資源簡介：This an example of how to install and use interrupts on AT91M4800A-embedded systems when building an rtos system.
上傳時(shí)間： 2014-01-05
上傳用戶：zhliu007
資源簡介：This program sets up EVA Timer 1, EVA Timer 2, EVB Timer 3 and EVB Timer 4 to fire an interrupt on a period overflow. A count is kept each time each interrupt passes through the interrupt service routine. EVA Timer 1 has the shortest period...
上傳時(shí)間： 2013-12-25
上傳用戶：康郎
資源簡介：This program sets up EVA Timer 1, EVA Timer 2, EVB Timer 3 and EVB Timer 4 to fire an interrupt on a period overflow. A count is kept each time each interrupt passes through the interrupt service routine.
上傳時(shí)間： 2017-04-25
上傳用戶：fandeshun
