By Jean-Christophe Vali?re
This publication issues the presentation of particle speed dimension for acoustics utilizing lasers, together with Laser Doppler Velocimetry (LDV or Anemometry (LDA)) and Particle Imagery Velocimetry (PIV).
The goal is first to offer the significance of measuring the acoustic speed, particularly whilst the acoustic equations are nonlinear in addition to characterizing the close to fields. besides the fact that, those purposes have to use non-invasive sensors. a few optical innovations, first and foremost constructed for fluid mechanics, were tailored to the sector of acoustics lately. This publication summarizes 15 years of study during this region, highlighting the advancements which were made, really in sign processing, and exhibiting purposes for which they've got confirmed to be a service of innovation.
Read or Download Acoustic Particle Velocity Measurements Using Laser: Principles, Signal Processing and Applications PDF
Best signal processing books
Real-time electronic sign Processing: Implementations and functions has been thoroughly up-to-date and revised for the second version and is still the single ebook on DSP to supply an summary of DSP concept and programming with hands-on experiments utilizing MATLAB, C and the most recent fixed-point processors from Texas tools (TI).
In line with usual circuit concept and easy physics, this e-book serves as a useful reference for either analog and electronic engineers alike. in the event you paintings with analog RF, this publication is a must have source. With pcs and networking apparatus of the twenty first century operating at such excessive frequencies, it really is now the most important for electronic designers to appreciate electromagnetic fields, radiation and transmission strains.
The relative movement among the transmitter and the receiver modifies the nonstationarity homes of the transmitted sign. specifically, the almost-cyclostationarity estate exhibited by way of just about all modulated signs followed in communications, radar, sonar, and telemetry will be reworked into extra common forms of nonstationarity.
In accordance with updates to sign and snapshot processing know-how made within the final twenty years, this article examines the latest study effects touching on Quaternion Fourier Transforms. QFT is a primary part of processing colour pictures and complicated valued indications. The book’s cognizance to mathematical ideas, imaging functions, and Matlab compatibility render it an irreplaceable source for college kids, scientists, researchers, and engineers.
- Signal Processing for Solar Array Monitoring, Fault Detection, and Optimization
- A Math Primer for Engineers
- Digital Video and DSP: Instant Access
- Introduction to Audio Analysis. A MATLAB Approach
- Millimeter-Wave Digitally Intensive Frequency Generation in CMOS
- Game theory in wireless and communication networks : theory, models, and applications
Extra resources for Acoustic Particle Velocity Measurements Using Laser: Principles, Signal Processing and Applications
I D ¬ G )W 7 * W W W W >@ / ³ YP )7 * GW / ³ YE ) W 7 * GW LI W )W # W * !! I DF WKHQ WKH GLVSODFHPHQW FRXOG EH ZULWWHQ DV Y D ª VLQ ). I D W * FRV ). I D ) W / W * / -D )7 * * º¼ . I D IOXFWXDWLRQ ZLOO GHFUHDVH 5HPLQGHU RI )RXULHU DQDO\VLV WRROV )RXULHU WUDQVIRUP :H QRZ DVVXPH WR KDYH RQO\ RQH UHDOL]DWLRQ RI D SURFHVV 7KH )RXULHU WUDQVIRUP )7 RI WKH VLJQDO [W LV E\ GHILQLWLRQ / ; I ³ [W H #. M I W GW >@ # DQG LW LV FDOOHG WKH VSHFWUXP ;I LV WKH )RXULHU FRPSRQHQW IRU JLYHQ I 7KH LQYHUVH )RXULHU WUDQVIRUP ,)7 ZKLFK SHUPLWV XV WR UHWULHYH WKH HQWLUH VLJQDO [ W ³ / # ; I H .
F + S +S + S # / M0. +[ + [ +W +W . I F >@ >@ ,W LV VWUDLJKWIRUZDUG WR SURYH WKDW WKH SURJUHVVLYH ZDYH S )[ W * $H M(W H # MN [ [ ZLOO SURSDJDWH ZLWK D ZDYH QXPEHU ZKHQ [ LQFUHDVHV N[ ( . G F / Y / 0 >@ DQG ZKHQ [ GHFUHDVHV N[ # ( . +2/76 0 9$1 (&. 3 HW DO ³9RUWH[ VRXQG LQ EDVVUHIOH[ SRUWV RI ORXGVSHDNHUV 3DUW , 2EVHUYDWLRQ RI UHVSRQVH WR KDUPRQLF H[FLWDWLRQ DQG UHPHGLDO PHDVXUHV´ -RXUQDO RI WKH $FRXVWLFDO 6RFLHW\ RI $PHULFD YRO SS ± >526 @ 5266, 0 (OHFWUDFRXVWLTXH 3UHVVHV SRO\WHFKQLTXHV URPDQGHV /DXVDQQH 6RPH 7RSLFV RQ 6LJQDO 3URFHVVLQJ 7KLV FKDSWHU RXWOLQHV VRPH HOHPHQWV RQ VLJQDO SURFHVVLQJ WKHRU\ LQ RUGHU WR XQGHUVWDQG WKH GHYHORSPHQW RI ODVHU WHFKQLTXHV IRU DFRXVWLFV 7KXV RYHU WKH ODVW WZR GHFDGHV WKH LPSURYHPHQW RI ODVHU WHFKQLTXHV GHYHORSHG LQ WKH FRQWH[W RI DFRXVWLFV KDV HVVHQWLDOO\ FRQFHUQHG VLJQDO SURFHVVLQJ LQ RUGHU WR LQFUHDVH WKH VHQVLWLYLW\ DQG SUHFLVLRQ RI VXFK D PHDVXUHPHQW )RXULHU DQDO\VLV DQG LWV DSSOLFDWLRQV IRU GHWHUPLQLVWLF VLJQDOV DUH DVVXPHG WR EH NQRZQ 1HYHUWKHOHVV ZH ZLOO SUHVHQW WKH DQDO\VLV RI UDQGRP VLJQDOV DQG LQWURGXFH EDVLF NQRZOHGJH RI WKH WKHRU\ RI HVWLPDWLRQ :H ZLOO HPSKDVL]H WKH VLJQDO DQDO\VLV E\ V\QFKURQRXV PHWKRGV WKDW DUH LPSRUWDQW LQ DFRXVWLFV IRU VXFK DSSOLFDWLRQ LQ RUGHU WR JDLQ LQ WHUPV RI VHQVLWLYLW\ )LQDOO\ VLJQDO SURFHVVLQJ IRU QRQXQLIRUPO\ VDPSOHG GDWD ZLOO EH SUHVHQWHG EHFDXVH RI LWV QHHG LQ ODVHU 'RSSOHU YHORFLPHWU\ /'9 PHDVXUHPHQW 0HDVXUHPHQW VLJQDO 5DQGRP VLJQDOV ,Q PDQ\ H[SHULPHQWDO FRQGLWLRQV DQG SDUWLFXODUO\ LQ YHORFLW\ PHDVXUHPHQW E\ PHDQV RI ODVHUV WKH VLJQDOV KDYH UDQGRP FKDUDFWHULVWLFV )LJXUH VKRZV ILYH UHDOL]DWLRQV RI WKH VDPH VLPXODWHG SURFHVV $ VLQXVRLG VLJQDO ZLWK D UDQGRP SKDVH XQLIRUPO\ GLVWULEXWHG EHWZHHQ ±.
6RPH 7RSLFV RQ 6LJQDO 3URFHVVLQJ DQG XVLQJ WKH 3DUVHYDO HTXDOLW\ / ³ # ; I GI ³ / >@ [W GW # LW LPSOLHV WKDW WKH VSHFWUXP VKRXOG EH EDQGOLPLWHG ³ / # >@ ; I GI ! 7DEOH VHFWLRQ SUHVHQWV WKH PDLQ SURSHUWLHV RI )7 DQG 7DEOH VHFWLRQ SUHVHQWV WKH )7 RI SULQFLSDO VLJQDOV 8QLIRUP VDPSOLQJ DQG UHFRYHU\ RI VLJQDOV ,Q RUGHU WR EH FRPSXWHG WKH VLJQDOV KDYH WR EH VDPSOHG 0RVWO\ WKH VDPSOLQJ LV GRQH XVLQJ D FRQVWDQW WLPH 7V EHWZHHQ WZR VDPSOHV DV / [V W [W ¦ ) W # Q7V * Q # / ¦ [ ) Q7 * ) W # Q7 * V >@ V Q # &DOFXODWLQJ WKH )7 DQG XVLQJ LWV SURSHUWLHV )7 RI D 'LUDF FRPE ZH IRXQG ;V ) I * ; I 7 / § Q # © Q· ¸ 7V V ¹ ¦ ¨ I #7 / § Q # © Q· ¸ V ¹ ¦ ; ¨ I #7 >@ 7KH VSHFWUXP ; V ) I * RI WKH VDPSOLQJ VLJQDO LV SHULRGLF LQ WKH IUHTXHQF\ GRPDLQ ZLWK D SHULRG )V 7V 7KLV SURSHUW\ PHDQV WKDW WKH VLJQDO VKRXOG EH EDQGOLPLWHG ±)V I )V WR DYRLG IROGLQJ GXH WR VDPSOLQJ $VVXPLQJ WKDW WKH PD[LPXP IUHTXHQF\ FRPSRQHQW RI WKH VLJQDO LV )PD[ REYLRXVO\ OHVV WKDQ )V ZH FRXOG WKHRUHWLFDOO\ ILOWHU WKH VDPSOHG VSHFWUXP ZLWK D UHFWDQJXODU IXQFWLRQ GHILQHG DV LI # )F " I " )F UHFW )F ) I * ® ¯ RWKHUZLVH ZLWK )PD[ !
Acoustic Particle Velocity Measurements Using Laser: Principles, Signal Processing and Applications by Jean-Christophe Vali?re