Towards a polarimetric C-band aircraft SAR in the Netherlands

In The Netherlands a digltal SLAR system (X-band)is used since many years in the radar remote sensing research. This system supports research Programs in which also other equipment is used, for instance a multiband airborne scatterometer. Based on our experience in radar remote sensing a polarimetric C-band aircraft SAR is designed, to be...

Diagnostic information from subjective and objective intelligibility tests

An attempt was made to obtain, from two subjective and one objective intelligibility measures, additional information concerning the type of deterioration the speech signal was subjected to. For this method a data reduction of the original phoneme scores and phoneme confusions was applied. This procedure was also performed for an objective ...

De roodlichtdiscipline van bestuurders van motorvoertuigen onder invloed van een aanpassing van de geeltijd

Validatie van ongevalsvoorspellers voor Krimpenerwaardkruispunten

Voor een steekproef van Krimpenerwaardkruispunten is nagegaan of de op grond van eerder onderzoek opgestelde regressievergelijkingen in staat zouden zijn om ongevalscijfers met een voldoende mate van nauwkeurigheid te voorspellen. Zulks bleek, binnen de marges van statistische betrouwbaarheid, het geval te zijn. De vergelijkingen kunnen daarmee...

An algorithm for radiometric and geometric correction of digital SLAR data

In The Netherlands an accurate SLAR system with digital data recording is used for measurements within the framework of the national microwave remote sensing research program. However, the images are disturbed by unwanted platform motions due to, e.g., turbulence at the low operating height (300–3000 m) of the SLAR system. An algorithm is...

Time-averaging circuit with continuous response

An expression is derived for the computation of the time average of a function f(t). Based on this expression, a principle is discussed realizing continuous computation of the time average of the input signal. Some practical circuits are discussed. These circuits offer several advantages over classical solutions. An expression is derived for the...

The terminal CNV and stimulus discriminability in motor and sensory tasks

Slow EEG potentials were recorded during the foreperiod of a signal detection task which involved different levels of discrimination difficulty. The subject was requried to react to S2 as quickly as possible or to delay his responses by 1 s. It was found that the contingent negative variation (CNV) was attenuated when no speeded response was...

Measured performance of a sequential two-step detection scheme

Measurements have been carried out to compare a sequential two-pulse detection scheme with conventional single-pulse detection. Measured and computed results are in good agreement.

Correlator technology

The paper reviews a number of designs of cross-correlation receivers for the detection of active underwater transmissions. Particular attention is given to the various structures of phase insensitive receivers, and to the problems concerned with clipping of the input signal and the reference function.

Informatietheorie