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Frank Liu (@Frank_os)

Wireless communication, CDMA, OFDM, SDR. Error correction coding RTL implementation RS, Turbo and LDPC. Communication system design, synchronization and channel estimation.

Re: Group delay in a multirate system

Reply posted 4 months ago (08/08/2024)
The cross correlation was taken between the input and the output of the multirate system. A single tone was used as the input signal. The group delay value given...

Group delay in a multirate system

New thread started 4 months ago
Recently, I have worked on a multirate system, the delay from the input and output found from the cross correlation was far off from the theoretical result. I don’t...
Kaz  You are right,  the frequency offset means the frequency difference between the TX and RX due to the oscillators.
I asked the question about to recover signal from the real part of IFFT OFDM system before,Recover signal from the real part of IFFT.thanks for the responses from...

Re: Recover signal from the real part of IFFT

Reply posted 4 years ago (04/23/2021)
fred and  Detlef, thanks for replies. In the content of IEEE 1901.2, the spectral domain signal can be complex, such as DQPSK, 8DPSK or 16 QAM. In IEEE 802.11a...

Recover signal from the real part of IFFT

New thread started 4 years ago
In the IEEE 1901.2 narrow-band OFDM based  PLC standard, the IFFT is performed at the TX side to convert the signal from the frequency domain to the time domain....

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