JAWAHAR A, and VISHNU CHAKRAVARTHI CH. “IMPROVED NON-LINEAR SIGNAL ESTIMATION TECHNIQUE FOR UNDERSEA SONAR BASED NAVAL APPLICATIONS”. Innovare Journal of Engineering and Technology, vol. 4, no. 4, Oct. 2016, pp. 20-25, https://innovareacademics.in/journals/index.php/ijet/article/view/15078.