Tellambura, "Analysis of clipping noise and tone-reservation algorithms for peak reduction in
OFDM systems," IEEE Transactions on Vehicular Technology, vol.
Zwick, "MIMO
OFDM radar with communication and interference cancellation features," in Proceedings of the 2014 IEEE Radar Conference, RadarCon 2014, pp.
Finally, this continuous time domain
OFDM signal is transmitted through power amplifier after filtering.
The
OFDM signals from both X and Y polarization Directions need to be converted from a RF signal to an optical signal through the RF to optical converter system (RTO), each consist of two mach-zehender modulators and a CW laser source, polarization splitter and combiner are used before and after this process.
The main function of the PTS method is that it divides the input
OFDM signal into many sub-signals, each sub-signal is then multiplied by a specific, deferent weight, and this function is repeated until the needed value is reached.
[11] Kang S G, Kim J G, Joo E K, "A novel subblock partition scheme for partial transmit sequence
OFDM," IEEE Transactions on Broadcasting, vol.
(2013) to mitigate the impulsive noise in the frequency domain through detection and sharing approach for
OFDM demodulation.
Then, according to [6], the PAPR of the
OFDM signals can be denoted as
Under narrow-band circumstance and for arbitrary target signal in space, the downconverted echoes of the
OFDM array radar can be written as
where [S.sub.B](t) denotes the baseband
OFDM signal, [N.sub.sc] denotes the number of subcarriers, [C.sub.k] denotes the information symbol or pilot symbol of the [k.sub.th] subcarrier, and [f.sub.k] is the frequency of the subcarrier.