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一站固定式双基地低频UWB SAR具有方位移变的距离徙动和较长的合成孔径,这导致其距离方位耦合变得非常复杂,从而限制了频域算法的应用.为此,本文提出一种基于椭圆极坐标的一站固定式双基地低频UWB SAR FFBP算法.基于一站固定式双基地SAR的成像几何,分别推导了直角坐标与椭圆极坐标下后向投影算法的解析表达式,并讨论了双基地FFBP算法中采用椭圆极坐标的优势.然后分别从频带和斜距误差角度推导了子...
Transmission of multi-band OFDM-UWB signals along FTTH networks using directly modulated lasers is experimentally evaluated. Reach of 100 km of standard SMF is achieved with a BER below 10 -4 and an O...
We demonstrate a proof of concept real time HD video stream delivery over 50m 1mm core diameter plastic optical fiber and 3m wireless link employing MB-OFDM UWB technology for in-home networks.
Tunable optical pulse compression is proposed to generate the FCC compliant impulse radio utra-wideband (IR-UWB) pulses with high speed modulation. Experimental generation and transmission of up to 5 ...
The impact of fiber dispersion on the performance of optical phase modulated impulse-radio-ultrawideband (IR-UWB) signals is experimentally investigated. 2Gbps BPSK IR-UWB over 78km fiber transmission...
We experimentally investigate the impact of crosstalk on the performance of MB-OFDM UWB signal transmission in RoF WDM system. It is found that OFDM signal’s orthogonalities are almost kept after 20 k...
We experimentally demonstrate beyond 2.5Gbps photonic generation of different pulse modulation formats for impulse radio ultra-wideband (IR-UWB) over fiber application. IR-UWB transmission over 20km f...
We propose and demonstrate, for the first time, service multicasting by all-opticalrouting of 1 Gb/s IR-UWB using XGM of SOA. This technique has potential applications for integrating IR-UWB with WDM ...
We investigate the performance of multiband OFDM ultra wideband (UWB) signal over fiber system considering the impact of RF noise. A compensation technique is proposed to reduce RF noise impact.
We demonstrate bidirectional fiber and wireless transmission of impulse radio ultra-wideband at 3.125Gbps downstream and 2Gbps upstream. After transmission over 50km fiber and 1.85m wireless link both...
Fiber transmission of simultaneous optically generated FCC compliant 625Mbps impulse radio UWB and 80Mbps 256-QAM IEEE 802.16 WIMAX signals is experimentally demonstrated by using a single directly mo...
A UWB over fiber transmitter that can be reconfigured to implement pulse-polarity modulation, pulse-shape modulation, pulse-amplitude modulation and on-off keying modulation is proposed and demonstrat...
We demonstrate 3.125 Gb/s photonic impulse radio UWB generation using an uncooled distributed feedback laser. After 50km fiber transmission the signal is recovered without errors using a digital signa...
We report two approaches to generate optical ultrawideband (UWB) signals using quadratic nonlinear interactions in periodically poled lithium niobate (PPLN) seeded by either normal or dark pulses. Pai...
The performance of OFDM and IR-UWB radio-over-fibre distribution by direct and external modulation on SSMF/MMF is presented. Both UWB implementations achieve 75 km reach on SSMF.

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