Temat: localization system - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Vision localization system for mobile robot with velocities and acceleration estimator
Autorzy:: Dutkiewicz, P.
Kielczewski, M.
Kozłowski, K.
Pazderski, D.
Powiązania:: https://bibliotekanauki.pl/articles/199936.pdf
Data publikacji:: 2010
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: vision localization system
mobile robot
acceleration estimator
Opis:: The paper presents a localization system for a mobile robot using the vision system and LED markers and considers the problem of velocity and acceleration estimation in the case of planar motions. Theoretical considerations include the principle of measurement and the details of Kalman estimator with illustrations based on experimental setup. The presented measurement system can be used for a realization of advanced control algorithms for skid-steering mobile robots where significant slippage phenomenon appears.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2010, 58, 1; 29-41
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Inertial Sensors Integrated with Clothing to Localize People Inside Buildings
Autorzy:: Kawecki, Jaroslaw
Oleksy, Pawel
Januszkiewicz, Lukasz
Powiązania:: https://bibliotekanauki.pl/articles/227250.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: inertial sensors
wearable systems
step length estimation
indoor localization
localization system
intelligent T-shirt
Opis:: This article presents a wearable system that localizes people in the indoor environment, using data from inertial sensors. The sensors measure the parameters of human motion, tracking the movements of the torso and foot. For this purpose, they were integrated with shirt and the shoe insole. The values of acceleration measured by the sensors are sent via Bluetooth to a smartphone. The localization algorithm implemented on the smartphone, presented here, merges data from the shirt and the shoe to track the steps made by the user and filter out the localization errors caused by movements the shirt and torso. The experimental verification of the algorithm is also presented.
Źródło:: International Journal of Electronics and Telecommunications; 2020, 66, 1; 53-58
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Localization of Sound Sources in Normal Hearing and in Hearing Impaired People
Autorzy:: Niewiarowicz, M.
Kaczmarek, T.
Powiązania:: https://bibliotekanauki.pl/articles/177064.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: localization of sound source
ADHA
angle of directional hearing
tinnitus
left-right answer system
Opis:: This article presents results of investigations of the angle of directional hearing acuity (ADHA) as a measure of the spatial hearing ability with a special emphasis on people with hearing impairments. A modified method proposed by Zakrzewski has been used – ADHA values have been determined for 8 azimuths in the horizontal plane at the height of the listeners’ head. The two-alternative-forced-choice method (2AFC), based on a new system of listeners’ responses (left – right instead of no difference – difference in location of sound sources) was the procedure used in the experiment. Investigations were carried out for two groups of subjects: normal hearing people (9 persons) and hearing impaired people (sensorineural hearing loss and tinnitus – 9 persons). In the experiment different acoustic signals were used: sinu- soidal signals (pure tones), 1/3 octave noise, amplitude modulated 1/3 octave noise, CCITT speech and traffic noises and signals corresponding to personal character of tinnitus for individual subjects. The results obtained in the investigations showed, in general, a better localization of the sound source for noise type signals than those for tonal signals. Inessential differences exist in ADHA values for particular signals between the two groups of subjects. On the other hand, significant differences for tinnitus signals and traffic noise signals were stated. A new system of listeners’ responses was used and appeared efficient (less dispersion of results compared to the standard system).
Źródło:: Archives of Acoustics; 2011, 36, 4; 683-694
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Examination of the Effect of a Sound Source Location on the Steady-State Response of a Two-Room Coupled System
Autorzy:: Meissner, M.
Powiązania:: https://bibliotekanauki.pl/articles/177058.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: coupled room system
steady-state room response
potential and kinetic energy densities
localization of modes
Opis:: In this paper, the computer modelling application based on the modal expansion method is developed to study the influence of a sound source location on a steady- state response of coupled rooms. In the research, an eigenvalue problem is solved numerically for a room system consisting of two rectangular spaces connected to one another. A numerical procedure enables the computation of shape and frequency of eigenmodes, and allows one to predict the potential and kinetic energy densities in a steady-state. In the first stage, a frequency room response for several source positions is investigated, demonstrating large deformations of this response for strong and weak modal excitations. Next, a particular attention is given to studying how the changes in a source position influence the room response when a source frequency is tuned to a resonant frequency of a strongly localized mode.
Źródło:: Archives of Acoustics; 2011, 36, 4; 761-775
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Properties of the transmission-disequilibrium test for the detection of quantitative trait loci in livestock
Autorzy:: Szyda, J
Liu, Z.
Wild, V.
Powiązania:: https://bibliotekanauki.pl/articles/2044224.pdf
Data publikacji:: 1998
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: transmission-disequilibrium test
German Holstein cattle
chromosome localization
milk production
power
simulated data
population
real data
detection
dairy cattle
simulation system
Opis:: The transmission-disequilibrium test (TDT) is a model-free method to detect linkage between a marker and a trait locus. Originally developed to map disease genes in human genetics, this statistic has been recently extended to deal with quantitative characters. The emphasis of current research is on investigating statistical properties of the test applied to data from livestock populations. For various constellations of sample parameters, it is shown via simulation that the empirically derived null hypothesis distribution of TDT remains in good agreement with its asymptotic distribution while its power is satisfactory only for very close linkage. TDT is then applied to a real data set from milk production data of a dairy cattle population.
Źródło:: Journal of Applied Genetics; 1998, 39, 4; 309-319
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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