Zobrazeno 1 - 10
of 161
pro vyhledávání: '"J. Detlefsen"'
Publikováno v:
Advances in Radio Science, Vol 9, Pp 67-71 (2011)
For arrays the placement of the single elements determines the angular resolution and the unambiguity interval. The width of the total array determines the resolution capabilities. The wider the elements are placed from each other, the more space
Externí odkaz:
https://doaj.org/article/f215c34a8cdf43eea5a847e63f8425dc
Publikováno v:
Advances in Radio Science, Vol 6, Pp 63-66 (2008)
We present a bistatic extension of a broadband monostatic FMCW Radar working in the Millimetre-Wave (MMW) region and its bistatic imaging properties used for imaging purposes. Due to the different perspective of a bistatic setup compared to a monosta
Externí odkaz:
https://doaj.org/article/931e738a81ab4dac8d8a5dfdd6487e31
Autor:
C. Hornsteiner, J. Detlefsen
Publikováno v:
Advances in Radio Science, Vol 6, Pp 67-70 (2008)
Human locomotion consists of a complex movement of various parts of the body. The reflections generated by body parts with different relative velocities result in different Doppler shifts which can be detected as a superposition with a Continuous-Wav
Externí odkaz:
https://doaj.org/article/6ba13c9a522749e3bf243773cbc830fd
Publikováno v:
Advances in Radio Science, Vol 5, Pp 147-151 (2007)
To detect threats on a person's body surface the application of millimetre-waves is possible. In order to get a view of the person from all sides either the person has to be rotated standing on a turntable (Inverse Synthetic Aperture Radar, ISAR) or
Externí odkaz:
https://doaj.org/article/3dfe67988291485ab72172521b2e374a
Autor:
S. Schelkshorn, J. Detlefsen
Publikováno v:
Advances in Radio Science, Vol 5, Pp 153-156 (2007)
An increasing number of modern applications and services is based on the knowledge of the users actual position. Depending on the application a rough position estimate is sufficient, e. g. services in cellular networks that use the information about
Externí odkaz:
https://doaj.org/article/78f19557380d49c4a5f072f3274e9471
Publikováno v:
Advances in Radio Science, Vol 4, Pp 85-91 (2006)
We present a novel reconstruction algorithm of ω-k type which suits for wideband circular synthetic aperture data taken in stripmap mode. The proposed algorithm allows to reconstruct an image on a cylindrical surface. The range trajectory is approxi
Externí odkaz:
https://doaj.org/article/3c8b02ce18b9416f9cb36f063f299094
Publikováno v:
Advances in Radio Science, Vol 4, Pp 73-78 (2006)
Increasing resolution is an attractive goal for all types of radar sensor applications. Obtaining high radar resolution is strongly related to the signal bandwidth which can be used. The currently available frequency bands however, restrict the avail
Externí odkaz:
https://doaj.org/article/2e07668dd9ce4a0a96b3ebbaf7ddd55a
Publikováno v:
Advances in Radio Science, Vol 3, Pp 233-238 (2005)
In this paper a low-cost concept for the controlled RF plane wave exposure for in vivo experiments is presented. The exposure setup is based on the use of a parabolic reflector to convert the incident spherical wavefront emanating from the primary so
Externí odkaz:
https://doaj.org/article/8e2e42cbb6144164838b4f14002659f7
Publikováno v:
Advances in Radio Science, Vol 3, Pp 199-204 (2005)
Increasing resolution and accuracy is an important issue in almost any type of radar sensor application. However, both resolution and accuracy are strongly related to the available signal bandwidth and energy that can be used. Nowadays, often several
Externí odkaz:
https://doaj.org/article/bf58d771ad1546dfabf8fecbe2e67a09
Publikováno v:
International Journal of Molecular Sciences, Vol 24, Iss 3, p 1873 (2023)
Steroid hormones synchronize a variety of functions throughout all stages of life. Importantly, steroid hormone-transforming enzymes are ultimately responsible for the regulation of these potent signaling molecules. Germline mutations that cause dysf
Externí odkaz:
https://doaj.org/article/1233c7256999459f9d5593e4516daa69