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The addition of the mobile phone signal booster enhances the performance of the iPhone application, allowing it to successfully transmit ECGs more consistently than commercial systems in all signal coverage environments. !
As a result, how to further boost signal level is the key to achieving a larger imaging depth.
With the ubiquitous connectivity of battery-free tags in the near future, FreeScatter can significantly boost the network throughput.
By using new quantization techniques in the polar domain, the proposed receiver can boost the signal to quantization noise ratio (SQNR) compared to a traditional rectangular (I/Q) receiver.
Furthermore, we show how transmitter power weighting (i. e., certain transmitters have higher output power than others) can improve the signal-to-cochannel-interference ratio for the novel cellular systems.
A device incorporating electrodes into an Apple iPhone case allows for wireless recording of 30-second rhythm strips (LEAD I) to the cloud (AliveCor, Okla. City, OK).
This parameter-free method can effectively reduce the signal self-cancellation at high signal-to-noise ratio.
First, improved high boost filter is proposed to enhance the high frequency signal where the target may appear and suppress the low frequency signal.
It can be concluded from this study that, using the iPhone accelerometer, features can be successfully extracted with high agreement.
Open accessProceedings ArticleDOI
J. Fung, Steve Mann 
17 May 2004
103 Citations
It is shown that significant speedups can be achieved, while leaving the CPU free for other signal processing tasks.