Model based signal enhancement for impulse response measurement:
Saved in:
| Main Author: | |
|---|---|
| Format: | Thesis Book |
| Language: | English |
| Published: |
Berlin
Logos-Verl.
2014
|
| Series: | Aachener Beiträge zur technischen Akustik
18 |
| Subjects: | |
| Online Access: | Inhaltstext Inhaltsverzeichnis |
| Physical Description: | VI, 135 S. Ill., graph. Darst. |
| ISBN: | 9783832536305 3832536302 |
Staff View
MARC
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Record in the Search Index
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CONTENTS
ACRONYMS ILL
1 INTRODUCTION 1
2 FUNDAMENTALS 5
2.1 BASICS IN SIGNAL PROCESSING 5
2.2 IMPULSE RESPONSE OF ACOUSTIC SYSTEMS 6
2.3 IMPULSE RESPONSE MEASUREMENT WITH VARIOUS EXCITATION SIGNALS . . 10
2.4 MULTI-SENSORS BASED SIGNAL PROCESSING 14
2.4.1 SPATIAL FILTERING 15
2.4.2 STATISTICS-BASED METHODS 20
2.4.3 COMPARISON WITH AVERAGING 30
3 SEPARATION OF DIRECT SOUND AND REFLECTED SOUND: REFLECTION COEFFICIENT
IN
SITU MEASUREMENT 33
3.1 GENERAL SOLUTION TO SEPARATE DIRECT SOUND AND REFLECTED SOUND . . 33
3.2 PRACTICAL ARRAY OPTIMIZATION 36
3.3 APPLICATION:REFLECTION COEFFICIENT IN SITU MEASUREMENTS 40
3.3.1 MEASUREMENT RESULTS 43
3.4 DISCUSSION 47
4 APPLICABILITY OF SOURCE SEPARATION METHOD ON IMPULSE RESPONSE MEASURE
MENT 51
4.1 SEPARATE TWO WAVES IN A FREE FIELD 52
4.2 SEPARATING DIRECT AND REFLECTED WAVES AND NOISE 55
4.3 EACH SOURCE HAS A FEW REFLECTIONS 60
4.4 SEPARATION OF NOISE IN REVERBERANT FIELDS 61
4.5 CONCLUSION 72
5 TIME-VARIANT SYSTEM: WIND VARIANCE 75
5.1 PHASE SHIFT IN UNIFORM FLOW 75
5.2 PHASE COMPENSATION FOR REFLECTION COEFFICIENT 83
5.3 CONCLUSION 84
6 TIME-VARIANT SYSTEM: TEMPERATURE VARIANCE 87
6.1 TIME-STRETCHING MODEL 87
6.1.1 SIMPLE REFLECTION 89
I
HTTP://D-NB.INFO/1047253216
CONTENTS
6.1.2 3-DIMENSIONAL SCENARIO 92
6.2 INTRA-PERIOD TIME VARIANCE 97
6.3 ESTIMATION OF THE TIME-STRETCHING FACTOR 101
6.4 MEASUREMENT PRACTICE 106
6.5 MEASUREMENT RESULTS FOR INTER-PERIOD TIME VARIANCE 107
6.6 SIMULATION RESULTS FOR INTRA-PERIOD TIME VARIANCE 114
7 SUMMARY AND CONCLUSION 119
A SOLUTION FOR POINT SOURCE IN UNIFORM FLOW
123
BIBLIOGRAPHY 126
ACKNOWLEDGMENTS 133
CV 135
II |
| any_adam_object | 1 |
| author | Wang, Xun 1983- |
| author_GND | (DE-588)1048407241 |
| author_facet | Wang, Xun 1983- |
| author_role | aut |
| author_sort | Wang, Xun 1983- |
| author_variant | x w xw |
| building | Verbundindex |
| bvnumber | BV042477477 |
| classification_rvk | ZQ 3860 |
| ctrlnum | (OCoLC)870546003 (DE-599)DNB1047253216 |
| dewey-full | 620.2 |
| dewey-hundreds | 600 - Technology (Applied sciences) |
| dewey-ones | 620 - Engineering and allied operations |
| dewey-raw | 620.2 |
| dewey-search | 620.2 |
| dewey-sort | 3620.2 |
| dewey-tens | 620 - Engineering and allied operations |
| discipline | Maschinenbau / Maschinenwesen Elektrotechnik / Elektronik / Nachrichtentechnik Mess-/Steuerungs-/Regelungs-/Automatisierungstechnik / Mechatronik |
| format | Thesis Book |
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| id | DE-604.BV042477477 |
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| indexdate | 2024-09-10T01:40:24Z |
| institution | BVB |
| isbn | 9783832536305 3832536302 |
| language | English |
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| publishDate | 2014 |
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| publisher | Logos-Verl. |
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| spelling | Wang, Xun 1983- Verfasser (DE-588)1048407241 aut Model based signal enhancement for impulse response measurement Xun Wang Berlin Logos-Verl. 2014 VI, 135 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Aachener Beiträge zur technischen Akustik 18 Zugl.: Aachen, Techn. Hochsch., 2013 Geräuschminderung (DE-588)4129292-3 gnd rswk-swf Impulsantwort (DE-588)4383898-4 gnd rswk-swf Akustische Messtechnik (DE-588)4310930-5 gnd rswk-swf Akustische Signalverarbeitung (DE-588)4283234-2 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Akustische Messtechnik (DE-588)4310930-5 s Impulsantwort (DE-588)4383898-4 s Akustische Signalverarbeitung (DE-588)4283234-2 s Geräuschminderung (DE-588)4129292-3 s DE-604 Aachener Beiträge zur technischen Akustik 18 (DE-604)BV044545853 18 X:MVB text/html http://deposit.dnb.de/cgi-bin/dokserv?id=4585792&prov=M&dok_var=1&dok_ext=htm Inhaltstext DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027912522&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Wang, Xun 1983- Model based signal enhancement for impulse response measurement Aachener Beiträge zur technischen Akustik Geräuschminderung (DE-588)4129292-3 gnd Impulsantwort (DE-588)4383898-4 gnd Akustische Messtechnik (DE-588)4310930-5 gnd Akustische Signalverarbeitung (DE-588)4283234-2 gnd |
| subject_GND | (DE-588)4129292-3 (DE-588)4383898-4 (DE-588)4310930-5 (DE-588)4283234-2 (DE-588)4113937-9 |
| title | Model based signal enhancement for impulse response measurement |
| title_auth | Model based signal enhancement for impulse response measurement |
| title_exact_search | Model based signal enhancement for impulse response measurement |
| title_full | Model based signal enhancement for impulse response measurement Xun Wang |
| title_fullStr | Model based signal enhancement for impulse response measurement Xun Wang |
| title_full_unstemmed | Model based signal enhancement for impulse response measurement Xun Wang |
| title_short | Model based signal enhancement for impulse response measurement |
| title_sort | model based signal enhancement for impulse response measurement |
| topic | Geräuschminderung (DE-588)4129292-3 gnd Impulsantwort (DE-588)4383898-4 gnd Akustische Messtechnik (DE-588)4310930-5 gnd Akustische Signalverarbeitung (DE-588)4283234-2 gnd |
| topic_facet | Geräuschminderung Impulsantwort Akustische Messtechnik Akustische Signalverarbeitung Hochschulschrift |
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| work_keys_str_mv | AT wangxun modelbasedsignalenhancementforimpulseresponsemeasurement |