Форум » Дискуссии » Dynamic range,sensivity,resolution ,noise ,eirp ,polosa signala... » Ответить
Dynamic range,sensivity,resolution ,noise ,eirp ,polosa signala...
milstar: 1.Receiver dynamic range --------------------------------- Stat`ja Watkins-Johnson /razr. i postawshik priemnikow spionaza wj8617 w 80-90 godi/ http://www.triquint.com/prodserv/tech_info/docs/WJ_classics/vol14_n1.pdf http://www.triquint.com/prodserv/tech_info/docs/WJ_classics/vol14_n2.pdf http://www.triquint.com/prodserv/tech_info/WJ_tech_publications.cfm Dinamicheksij diapazon radara AN/FPQ-6 programmi Appolo -bolee 120 db Antenna -8.8 metra D ,5.4-5.9 ghz ,4.8 kwt srednej,3 megawatt impulsnoj moschnosti , dalnost bolee 60 000 km ,pri raz. +-2 metra ,IF-30 mgz,polosa signala -1.6 mgz http://en.wikipedia.org/wiki/AN/FPQ-6 http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19680003409_1968003409.pdf ljubitelskij priemnik smotri revue pri polose 400 herz , i ydalenii nesuchej signala pomexi 2000 herz blok. dinamicheskij diapazon -140 db ,chustw -138 db=0.028 microvolta http://www.elecraft.com/ 2. http://www.sandia.gov/RADAR/imageryka.html kollekzija image ot 35 ghz synthetic apperture radar razr.sposobnost' 4 inches -10 sm,100 millimetr polosa signala 2500 mgz Contact: To send feedback or request information about the contents of Sandia National Laboratories' synthetic aperture radar website, please contact: Nikki L. Angus Synthetic Aperture Radar Website Owner Sandia National Laboratories Albuquerque, NM 87185-1330 (505) 844-7776 (Phone) (505) 845-5491 (Fax) nlangus@sandia.gov http://www.sandia.gov/RADAR/movies.html kollekzija video s SAR Ku band i raz sposb 300 mm 3. -dbm microvolt conversion http://wa8lmf.net/miscinfo/dBm-to-Microvolts.pdf 0 dbm =224 millivolt dlja 50 ohm -47 dbm = 1 millivolt = 1000 microvolt -107 dbm = 1 microvolt -127 dbm = 0.1 microvolt -147 dbm = 0.01 microvolt -167 dbm = 0.001 microvolt = 1 nanovolt pri komnatnoj temperature tepl. schumi -174 dbm/ herz
полная версия страницы