Single site electromyograph amplitude estimation


     Related Videos
Lec 36 MIT 18 01 Single Variable Calculus Fall 2007
Lec 35 MIT 18 01 Single Variable Calculus Fall 2007
Lec 33 MIT 18 01 Single Variable Calculus Fall 2007
Lec 32 MIT 18 01 Single Variable Calculus Fall 2007
Lec 31 MIT 18 01 Single Variable Calculus Fall 2007

     Related Hubpages

    Field: Engineering  DOWNLOAD  BOOKMARK REPORT
    •  Doc. Url:    Embed Code: 

    • IEEE  status
      (0) (0 Votes)
      		Views: (2001)   Date: (Publication Date: Feb. 1994)   Pages: ()

    • Author:  Clancy  E.A. Hogan  N. Dept. of Electr. Eng.  MIT  Cambridge  MA  USA;  

    • Abstract:  Abstract Previous investigators have experimentally demonstrated and/or analytically predicted that temporal whitening of the surface electromyograph (EMG) waveform prior to demodulation improves the EMG amplitude estimate. However, no systematic study of the influence of various whitening filters upon amplitude estimate performance has been reported. The authors describe a phenomenological mathematical model of a single site of the surface EMG waveform and reports on experimental studies which examined the performance of several temporal whitening filters. Surface EMG waveforms were sampled during nonfatiguing, constant-force, isometric contractions of the biceps or triceps muscles, over the range of 10-75% maximum voluntary contraction. A signal-to-noise ratio (SNR) was computed from each amplitude estimate (deviations about the mean value of the estimate were considered as noise). A moving average root mean square estimator (245 ms window) provided an average/spl plusmn/standard deviation (A/spl plusmn/SD) SNR of 10.7/spl plusmn/3.3 for the individual recordings. Temporal whitening with one fourth-order whitening filter designed per site improved the A/spl plusmn/SD SNR to 17.6/spl plusmn/6.0.

         Related Documents

           Related Groups

             Related Science News

               More on Sciencestage

               Answers

               News
          • Single in Japan: Survey Finds Record Number Are Going Solo
            Dai Nakajima wouldn't mind a girlfriend. At 28, he's starting to feel pressure to settle down. Not short of gumption, he approaches girls on the streets of Tokyo's trendy districts and asks if they'd like to join his weekly gokon parties. Like blind dating in a group, these singles-only meet-ups are designed to help people connect and, ideally, exchange numbers. He admits that his street success ...
          • Video: Singles economy: Why single people pay more
            Single people often pay higher rates for everything from car insurance to taxes. Personal finance expert Carmen Wong Ulrich speaks to the "CBS This Morning" co-hosts about why some businesses offer discounts to married couples.
          • Single String White LED Driver has fault-tolerant design.
            Supplied in eMSOP-10 or eTSSOP-16 package with integrated current-mode boost converter, internal power switch, and current sink, single-output A8513 backlights LCDs in automotive/consumer designs. Driver can operate from single 4.5-40 V power supply to accommodate start/stop, cold crank, and load dump requirements, and 2 MHz boost converter switching frequency enables operation above AM radio ...
          • Single test on state plate
            The issue was further examined by a committee under T. Ramasami, the secretary of the department of science and technology.
          • Single on Valentine's Day?
            No, not me. But I haven't been married that long that I can't remember what it was like to be single and looking for a life partner. Back then I dreaded Valentine's Day.
          • First Trust Introduces 7 Single-Country ETFs
            First Trust listed seven new exchange traded funds on Wednesday tied to single-country equity benchmarks, and plans to follow up with more ETF launches later this week.The funds that started trading Wednesday ...
          • Katy Perry Releases 'Part Of Me' Single: Listen
            After unveiling her new single, "Part Of Me," during her performance at the Grammy Awards on Sunday night (Feb. 12), Katy Perry has released the studio version of the song to iTunes and radio on Monday morning.
          • 5 Single-Chick Flicks For Valentine's Day
            by Emily Laurence All the single ladies, all the single ladies: Instead of wallowing in your solo status this Valentine’s Day, celebrate it! Put down the box of chocolates you bought for yourself, stop looking up your ex on Facebook and call up your girls. Hollywood Crush has your movie night all planned out. Here are [...]
          • Single vote decides school board election
            Voters in Lone Grove saw the power of one vote Tuesday as the annual school board election came down to a single vote.
          • Single life: Getting over the VDay Blues
            What's all the fuss about Valentine's Day and why spend so much to celebrate it? Ana Valenzuela mulls over the bitter truth of the costliest celebration next to Christmas.

               Related on Wikipedia




























           

          Powered free by PHPmotion