Accurate QTF Sensing Approach by Means of Narrow Band Spectral Estimation

<div>Estimation of <svg height="11.8174pt" id="M264" style="vertical-align:-3.1815pt" version="1.1" viewbox="-0.0498162 -8.6359 18.6572 11.8174" width="18.6572pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M828 650H570L564 622C646 614 650 609 634 524L604 366H253L281 524C296 608 308 615 382 622L388 650H132L126 622C211 615 214 609 198 524L121 122C106 42 102 35 23 28L17 0H276L282 28C196 35 191 40 206 122L243 324H597L559 123C544 42 537 35 452 28L446 0H710L716 28C632 35 628 43 643 122L719 524C735 610 741 615 822 622L828 650Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,10.075,3.132)"><path d="M303 0V28C221 34 213 39 213 125V525C213 610 221 616 303 622V650H38V622C120 616 128 610 128 525V125C128 40 120 34 38 28V0H303Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,13.178,3.132)"><path d="M493 503C489 551 484 614 483 650H43V622C120 616 128 611 128 525V126C128 40 120 34 40 28V0H312V28C221 34 213 40 213 126V307H316C407 307 412 296 424 227H453V420H424C412 355 407 346 316 346H213V584C213 613 216 616 246 616H322C398 616 419 607 436 579C449 559 455 539 464 499L493 503Z"></path></g></svg> obtained with the swept spectrum approach with different sweep speeds (FCR). For these measurements, the WNS block in Figure <a href="../fig7/">7</a> was replaced with a swept sinusoidal source.</div>

Journal of Sensors

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Figure 13

Figure 13: Accurate QTF Sensing Approach by Means of Narrow Band Spectral Estimation 