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= A data signal with a bit rate Ro = 230 kbit/s is transmitted using a digital modulation technique and rectangular puls
Posted: Sun May 15, 2022 6:19 pm
by answerhappygod
- A Data Signal With A Bit Rate Ro 230 Kbit S Is Transmitted Using A Digital Modulation Technique And Rectangular Puls 1 (108.3 KiB) Viewed 60 times
= A data signal with a bit rate Ro = 230 kbit/s is transmitted using a digital modulation technique and rectangular pulses. The received signal power is Ps = -23 dBm. a. BI= Number = kHz. Calculate the required null-to-null bandwidth Bt of the transmitted signal in case FSK with a frequency deviation of 920 kHz is applied. Also calculated the spectral efficiency n for this modulation based on the null-to-null bandwidth. η= Number bits/sec/Hz. b. Calculate the power spectral density of this signal at frequency f=fc + 966 kHz based on the single-sided power spectrum. The PSD of the signal at f = fc + 966 kHz is: umber dBm/Hz. The transmssion bandwidth BT = Number c. Determine the (absolute) transmission bandwidth Bī in case BPSK is used and a pre-modulation filter with a raised-cosine fa characteristic is applied with roll-of factor fo kHz. 0.65