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Autonomous tractors have gained high interest from researchers due to the need for increased productivity in Agriculture. Their application include ploughing, weeding and crop spraying. One problem of these tractors which has not been fully addressed is tracking using the noisy measurements from a sensor such as RADAR sensor. Most publications assume the error in the measurement to be Gaussian during...
The combination of MIMO techniques with OFDM, MIMO-OFDM, is a promising way of achieving high spectral efficiency in wireless communication systems. However, the performance of MIMO-ODFM systems is highly degraded by RF impairments such as phase noise. Similar to the SISO case, phase noise in MIMO-OFDM systems results in a common phase error (CPE) and inter carrier interference (ICI). In this paper...
In this paper, the low-loss coaxial probe fed microwave cavity filter is presented. The filter has recently shown great performance improvement in its selectivity and S-parameter response, but the rate of signal to noise ratio due to spurious modes in the pass band is significantly too high to ignore. A 2nd order band pass filter is investigated and its S-parameter response analysed by employing improved...
A four-pole elliptic function combline filter is discussed. In this filter, an electric probe is used between the two crossed coupled resonators in order to realise the required capacitive coupling. Unlike a method introduced recently for the same type of filters, this realisation reduces the need for resonators with long posts, providing filter compactness and offering flexible and wide range of...
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