연세대 통신실험 6주차 예비레포트-ASK
- 최초 등록일
- 2021.05.08
- 최종 저작일
- 2021.04
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"연세대 통신실험 6주차 예비레포트-ASK"에 대한 내용입니다.
목차
1. Background of this Lab
A. Symbol Mapping. The input data arrives in the stream of bits. Various format can be used in representing bits. For ASK we will represent a binary 1 by 1+ j0 and a binary 0 by −1+ j0. (Because of complex-valued input required by USRP)
B. Upsampling.
C. Pulse Shaping. when the upsampling signal is applied to a filter whose impulse gTX [n] is a rectangular pulse of unit amplitude and length L samples, each symbol is displayed as a rectangular pulse in the filter output.
D. Modulation.
Reference
본문내용
1. Background of this Lab
ASK is AM with a binary message waveform.
When carrier transmit a 1, then it is turned on. When carrier transmit a 0, then it is turned off. That’s why this mode referred to as “on-off” keying
Period T of pulse is called symbol time. 1/T is called symbol rate which is identical to the bit rate in binary modulation method.
Like ASK, it takes several steps to actually generate a modulated signal. Here are the following:
참고 자료
week 6 lecture note