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Use of the Bayesian concept for the calculation of characteristic limits in radioanalytical methods

Sterliński S.

Chemia Analityczna

2008

Vol. 53, No. 6

861-875

Presented are procedures based on modern Bayesian statistics which are used to calculate characteristic limits, i.e. the decision threshold, detection limit and confidence limit in radioanalytical methods. Indicated are also the key elements of this statistics which can be used for measurement of ionizing radiation. The attached example of instrumental neutron activation analysis provides an illustration of the issues discussed.

Przedstawiono procedury postępowania, oparte na nowoczesnej statystyce bayesowskiej, stosowane do obliczania granic charakterystycznych tzn. progu decyzji, granicy detekcji i granic ufności w metodach radioanalitycznych.Podano także podstawowe elementy tej statystyki w aspekcie jej wykorzystania w pomiarach promieniowania jonizującego. Załączony przykład z instrumentalnej neutronowej analizy aktywacyjnej ilustruje omówione zagadnienie.

Compensation of the dynamic error in burst-mode fibre optic receivers based on preamble filtering

Śliwczyński Ł.

Poznan University of Technology Academic Journals. Electrical Engineering

2007

No 54

189-196

In the paper the extension of the idea of the threshold generation circuitry based on preamble filtering, and dedicated for fibre-optic packet receivers, is presented. In such a circuit, during the phase of sweeping the time constant of the controlled filter some error arises. During further filter operation, this error diminishes, but the time necessary for this is quite long comparing to the bit period. This error is responsible for pulse width distortions of received bits and degrades bit error rate of the link. It is shown that this error may be compensated in the rceeiver what is proved by experimental data.