Modified Roll-off Filter with Optimized Impulse Response for Reducing PAPR of Transmitted Signal

2020 ◽  
Author(s):  
Yuki Fujiya ◽  
Noboru Izuka
Keyword(s):  
Impulse Response ◽  
Transmitted Signal

BROADBAND SOURCE LOCALIZATION IN THE GULF OF MEXICO

1996 ◽  
Vol 04 (04) ◽  
pp. 361-370 ◽  
Author(s):  
ZOI-HELENI MICHALOPOULOU ◽  
MICHAEL B. PORTER ◽  
JOHN P. IANNIELLO
Keyword(s):  
Time Series ◽  
Gulf Of Mexico ◽  
Water Column ◽  
Impulse Response ◽  
Acoustic Field ◽  
Source Localization ◽  
Source Position ◽  
Matched Field Processing ◽  
Yield Information ◽  
Transmitted Signal

The Gulf of Mexico experiment involved a broadband source (100–600 Hz) transmitting pseudorandom noise. The acoustic field was received by five hydrophones positioned vertically in the water column. By performing a correlation between the received time series and the transmitted signal, an approximation of the impulse response for the ocean channel is obtained. This impulse response is readily interpretable to yield information about the experiment, especially its geometry including receiver and bottom depths. With this refined environmental information, we then apply matched-field processing to obtain the source position.

ESTIMATION OF THE IMPULSE RESPONSE OF COMMUNICATION CHANNEL WITH MEMORY FOR THE OFDM SYSTEM

2020 ◽  
Author(s):  
В.Г. КАРТАШЕВСКИЙ ◽  
К.С. СЛИПЕНЧУК
Keyword(s):  
Impulse Response ◽  
Regularization Method ◽  
Communication Channel ◽  
Communication Channels ◽  
Ofdm System ◽  
Wise Decision ◽  
Transmitted Signal ◽  
With Memory ◽  
Ofdm Signals ◽  
Selection Of

Рассмотрена проблема оценивания методом регуляризации импульсной характеристики канала связи с памятью при приеме сигналов OFDM с использованием алгоритма «прием в целом с поэлементным принятием решений». Предлагаются варианты новых структур потока OFDM-символов с исключением защитных интервалов и включением испытательной комбинации (ИК)в структуру передаваемого сигнала при наличии памяти в каналах связи; для быстроизменяющихся каналов предлагается частая вставка ИК. Подбор ИК позволяет улучшить показатели качества оценивания импульсных характеристик методом регуляризации при наличии памяти в каналах связи. The problem of estimating the impulse response of the communication channel with memory when receiving OFDM signals using the "reception in general with element-wise decision-making" (RGEWDM) algorithm by the regularization method is considered. Variants of new structures of a stream of OFDM symbols are proposed with the exclusion of guard intervals and the inclusion of a test combination (TC) in the structure of the transmitted signal in the presence of memory in the communication channels; for rapidly changing channels frequent insertion of TC is proposed. The selection of TCs allows improving the quality indicators of impulse response estimation by the regularization method in the presence of memory in communication channels.

Influence of the Test Voltage Function over Lightning Impulse Response Parameters Measured by Long Cable

2018 ◽  
Vol 138 (3) ◽  
pp. 242-248 ◽  
Author(s):  
Shuji Sato ◽  
Seisuke Nishimura ◽  
Hiroyuki Shimizu ◽  
Hisatoshi Ikeda
Keyword(s):  
Impulse Response ◽  
Lightning Impulse ◽  
Test Voltage

Fractional Vector-Order h-Realisation of the Impulse Response Function

2020 ◽  
Vol 14 (2) ◽  
pp. 108-113
Author(s):  
Ewa Pawłuszewicz
Keyword(s):  
Control Systems ◽  
Impulse Response ◽  
Response Function ◽  
Impulse Response Function ◽  
Linear Control ◽  
Linear Control Systems

AbstractThe problem of realisation of linear control systems with the h–difference of Caputo-, Riemann–Liouville- and Grünwald–Letnikov-type fractional vector-order operators is studied. The problem of existing minimal realisation is discussed.

Fixed-Point Implementation of Infinite Impulse Response Notch Filters

2010 ◽  
Vol 17 (2) ◽  
Author(s):  
Eduardo Pinheiro ◽  
Octavian Postolache ◽  
Pedro Girão
Keyword(s):  
Fixed Point ◽  
Impulse Response ◽  
Infinite Impulse Response ◽  
Notch Filters
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