Correction to "Performance of Electrically Small Array Receiving Systems in the Presence of Noise"

Abstract A generalization of Capon's maximum-likelihood technique for detection and estimation of seismic signals is introduced. By using a multi-dimensional autoregressive approximation of seismic array noise, we have developed a technique to use Capon's multi-channel filter for on-line processing. Such autoregressive adaptation to the curent noise matrix power spectrum is shown to yield good suppression of mutually correlated array noise processes. As an example, this technique is applied to detection of a small Semipalatinsk underground explosion recorded at the ARCESS array.

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Экспонаты Музея «Пруссия» в Каталоге копий Центрального Римско-Германского музея (Майнц)

Slavia Antiqua. Rocznik poświęcony starożytnościom słowiańskim ◽

10.14746/sa.2019.60.1 ◽

2019 ◽

pp. 7-17

Author(s):

Владимир И. Кулаков

Keyword(s):

19Th Century ◽

Burial Ground ◽

Archaeological Material ◽

Local Origin ◽

Small Array ◽

The 19Th Century

The catalogue of copies from the Roman-German Central Museum (Mainz) poses an opportunity to present to the modern researcher the volume of Prussian archaeological material available on the second floor dedicated to the 19th century. By collecting what is considered the most representative exhibits, the museum authorities put on display items copied in Mainz and stored in Prussia-Museum (Königsberg). They were created by masters from Aesti and Prussia. The only imports among the small array of findings published in the catalogue include a helmet from the Dollkeim-Kovrovo burial ground (its local origin has not been excluded) and a lock and key from the Löbertshof cemetery / Tyulenino.

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The Very Small Array: Observations and Latest Results

Symposium - International Astronomical Union ◽

10.1017/s0074180900196512 ◽

2005 ◽

Vol 216 ◽

pp. 67-74

Author(s):

Anže Slosar ◽

Clive Dickinson

Keyword(s):

Power Spectrum ◽

Large Range ◽

Cosmological Parameters ◽

Low Noise ◽

Small Array

The Very Small Array (VSA) is a unique interferometric telescope operating at 33 GHz at Tenerife. It has the ability to measure fluctuations in the CMB over a large range of angular scales by means of three main array configurations: compact, extended and super-extended. These angular scales correspond to the multipole range ℓ = 150 —2500. Here we present new results from further observations of the extended array (February 2002 - June 2003). We cover ℓ-values up to ℓ ∼ 1600, thus doubling the ℓ-range of WMAP. The resulting power spectrum in the ℓ-range 800 – 1600 has very low noise coupled with good ℓ-resolution (Δℓ ∼ 80). Furthermore, the use of independently tracking aerials along with the dedicated source subtraction baseline allows unprecedented control of systematics. The latter is essential, since discrete sources are the dominant foreground at these angular scales. These measurements over larger ℓ-ranges are important in confirming the present cosmological paradigm and breaking degeneracies in the extraction of cosmological parameters.

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