Cross-correlation can be used in energy detection applications, such as spectrum analyzers, but also frequency shift keying (FSK) receivers, to improve noise suppression. To achieve higher signal-to-noise ratio (SNR), integration in time may be used, but could make it rather slow for communication purposes. In order to achieve better data-rates in low SNR conditions, we propose to use multiple chains instead of the traditional two chains. In this paper, we show an analysis of the SNR improvement and the power consumption penalty for BFSK modulation when using more chains. It shows that for low noise correlation between the chains, the improvement in sensitivity is proportional to the number of chains. Also, we develop a figure-of-merit to evaluate the optimum number of chains for different parameters of the receiver design. Furthermore, two examples from literature are analyzed. At their optimum number of chains, they both show $\sim$6dB improvement in sensitivity with similar or even better figure-of- merit.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Using Multiple Chains in Cross-Correlation Receivers to Improve Sensitivity


    Contributors:


    Publication date :

    2019-09-01


    Size :

    3056070 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Sensitivity of EW receivers

    Tsui, J.B. / Shaw, R. | Tema Archive | 1982


    Tangential sensitivity of EW receivers

    Tsui, J. | Tema Archive | 1981


    Sensitivity of digital electronic warfare receivers

    Hedge, J. / Tsui, J.B.Y. / Sharpin, D. | Tema Archive | 1990


    Sensitivity Analysis of Finite-Lag Receivers

    Prasad, S. / Mahalanabis, A.K. | IEEE | 1974


    Indoor Position Tracking Using Multiple Optical Receivers

    Yasir, M. / Ho, S.-W. / Vellambi, B. N. | British Library Online Contents | 2016