傳感器網(wǎng)絡(luò)基于特征值分解的信號(hào)被動(dòng)定位技術(shù)
[Abstract]:Passive signal location technology based on sensor network has a wide range of application prospects in electromagnetics, Sonar system and heat transfer. When the noise intensity received by sensor network nodes is different or the transmission channel has shadow fading effect, the estimation method of target signal arrival distance ratio location correlation measure and the passive location algorithm based on signal arrival distance ratio are given. The eigenvalue decomposition technique is introduced into the signal arrival distance ratio location correlation metric estimation, the received signal covariance matrix eigenvalue decomposition technique is used to estimate the received noise intensity, and the network reference node rotation and eigenvalue decomposition method are used to eliminate the location error introduced by the shadow fading effect. Finally, the least square localization solution of the algorithm is given. This method can eliminate the deterioration of positioning performance caused by the different noise intensity of node reception and shadow fading effect.
【作者單位】: 西安電子科技大學(xué)ISN國(guó)家重點(diǎn)實(shí)驗(yàn)室;西安電子科技大學(xué)通信工程學(xué)院;
【基金】:國(guó)家自然科學(xué)基金(批準(zhǔn)號(hào):61072070) 教育部高等學(xué)校博士學(xué)科點(diǎn)專項(xiàng)科研基金(批準(zhǔn)號(hào):20110203110011) 教育部基礎(chǔ)科研業(yè)務(wù)費(fèi)(批準(zhǔn)號(hào):72124338) 高等學(xué)校學(xué)科創(chuàng)新引智計(jì)劃(批準(zhǔn)號(hào):B08038) 陜西省自然基金重點(diǎn)項(xiàng)目(批準(zhǔn)號(hào):2012JZ8002)資助的課題~~
【分類號(hào)】:TP212.91
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