The symbol rate = Data Rate x Inverse of FEC x Modulation index. The Modulation index: QPSK=0.5 , 8PSK = 0.333, 16QAM=0.25 Let's take 41250 kbps with 3/4 rate FEC and QPSK as an example: 41250 x 4/3 x 0.5 = 27500 ksps (kilo symbols per second) ...
Two cheerful little girls with communication symbols paintings on their faces. Communication concept. 4K Cheerful little girl with telephone and satellite dish symbol paintings on her face. Playing peekaboo. Communication 4K Cheerful little girl with computer fan painting on...
The method comprises the following steps: improving a sending frame preamble structure at first, then on the basis of improving the preamble, calculating by means of good autocorrelation properties of a P symbol and an M symbol to judge whether a platform is generated, and judging the arrival ...
SOS services are available on all iPhones, but if you want access to emergency services outside of your cellular network, iPhone Emergency SOS via Satellite is what you’ll need. The Apple iPhone 14 or iPhone 14 Pro are the only iPhones that come with satellite capabilities. The extra servic...
CONSTITUTION: A method for enhancing an advertising message in a main broadcasting program maximize an advertising impact by inserting a text or an image on a part of a screen during transmitting a main broadcasting program. The method is to transmit a scroll, a symbol, a logo, a domain, ...