本文選題：無線傳感網(wǎng)絡(luò) + 定位　； 參考：《傳感技術(shù)學(xué)報》2017年05期

【摘要】：無線傳感網(wǎng)絡(luò)WSNs(Wireless Sensor Networks)的定位精度嚴(yán)重受到環(huán)境的影響,尤其是高噪聲電平和非視距連接的惡劣環(huán)境,定位精度急劇下降。為此,提出基于半定規(guī)劃的惡劣環(huán)境下定位修正算法,記為ESDP_O算法。該修正算法以半定規(guī)劃ESDP(Edge-Semi-Definite Programming)算法為基礎(chǔ),旨在提高定位精度,并降低算法復(fù)雜性,進(jìn)而減少定位時間。ESDP_O算法通過引用抖動矩陣,對ESDP算法進(jìn)行修改,提高了算法在惡劣環(huán)境的健壯性。同時,ESDP_O算法通過尋找低秩解,減少高噪聲和非視距偏差。仿真結(jié)果表明,在高噪聲和非視距NLOS(Non Line of Sight)的惡劣環(huán)境下,ESDP_O算法的定位精度優(yōu)于基于同類算法,并且降低了定位的復(fù)雜度。
[Abstract]:The location accuracy of WSNsN Wireless Sensor Networks (WSNsN) is seriously affected by the environment, especially in the bad environment with high noise level and non-line-of-sight connection. Therefore, a modified algorithm based on semidefinite programming is proposed, which is described as ESDPO algorithm. The modified algorithm is based on the semidefinite programming (ESDP) Edge-Semi-Definite programming algorithm, which aims to improve the location accuracy and reduce the complexity of the algorithm, thus reducing the location time. ESDPO algorithm modifies the ESDP algorithm by referring to the jitter matrix. The robustness of the algorithm in bad environment is improved. At the same time, the ESDPO algorithm can reduce the high noise and the nonline-of-sight deviation by finding the low rank solution. The simulation results show that the location accuracy of ESDPO algorithm is better than that based on the same algorithm and the complexity of location is reduced under the harsh environment of high noise and non-line-of-sight NLOSS-Non Line of SightSightThe ESDPO algorithm is superior to the similar algorithm.
【作者單位】： 黃淮學(xué)院信息工程學(xué)院;
【基金】：河南省科技廳重點攻關(guān)計劃項目(9412015Y1305) 國家自然科學(xué)基金項目(U1404602)
【分類號】：TN929.5;TP212.9

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本文編號：1992257