Signal detection and estimation 信號(hào)檢測(cè)和估計(jì)
First , the definition and properties of hos are introduced . we especially notice that hos is insensitive to gaussian process . this is the theoretical basis of signal detection and estimation 文章首先介紹了高階統(tǒng)計(jì)量的定義和性質(zhì),特別指出了高階統(tǒng)計(jì)量對(duì)高斯過程不敏感,這是我們利用它進(jìn)行信號(hào)檢測(cè)和估計(jì)的理論依據(jù)。
Recently years , the hot research directions of signal processing concentrate on the new theories of lfmcw radar signal detection and estimation , the new methods of eliminating range - velocity coupling , etc . a series of accomplishments have been achieved 當(dāng)前, lfmcw雷達(dá)信號(hào)處理的研究熱點(diǎn)集中在目標(biāo)檢測(cè)與參數(shù)估計(jì)方法、運(yùn)動(dòng)目標(biāo)距離-速度去耦合方法等方向上,并已取得一系列成果。
Based on the analysis of echo signal and ambiguity function of lfmcw radar , this dissertation advances new theories of lfmcw radar signal detection and estimation and eliminates range - velocity coupling using mtd - frequency domain pairing 在對(duì)lfmcw雷達(dá)回波信號(hào)和lfmcw雷達(dá)模糊函數(shù)進(jìn)行分析的基礎(chǔ)上,提出了lfmcw雷達(dá)目標(biāo)檢測(cè)與參數(shù)估計(jì)方法,并利用mtd -頻域配對(duì)法消除lfmcw雷達(dá)距離-速度耦合。
Analysis of ambiguity - function of lfmcw radar , including symmetrical triangular lfmcw signal and multiple periods ’ symmetrical triangular lfmcw signal . 3 . this dissertation advances new theories of lfmcw radar signal detection and estimation , including method for acceleration and velocity estimation based on polynomial phase transform ; method for multi - target acceleration and velocity estimation based on modification polynomial phase transform 包括基于多項(xiàng)相位變換的lfmcw雷達(dá)速度和加速度估計(jì)方法;基于修正多項(xiàng)相位變換的多目標(biāo)lfmcw雷達(dá)速度和加速度估計(jì)方法;基于一般高斯噪聲環(huán)境下的lfmcw雷達(dá)速度和加速度聯(lián)合估計(jì)方法;另外提出了基于頻域增采樣內(nèi)插方法以提高lfmcw雷達(dá)測(cè)距精度。
This thesis introduces the design mode of the system , acoustic signal detection and estimation methods , how to position and solve , etc . others discussed in the thesis include software and hardware realization of buoy electrical platform and base station synthesizer , and module design of controlling application 文中介紹了整個(gè)系統(tǒng)的設(shè)計(jì)模式,聲信號(hào)檢測(cè)與估計(jì)的手段,定位解算的方式,并且對(duì)浮標(biāo)電子平臺(tái)、基站綜合處理機(jī)的軟、硬件實(shí)現(xiàn)及主控軟件的模塊化設(shè)計(jì)也進(jìn)行了論述。
In this paper , according to the theory of signal detection and estimation , the optimal receiver pattern of pn code signal is introduced and theoretically , the relation curve of the probability of the correct detection with the input s / n ratio under the different probabilities of false alarm is illuminated 根據(jù)信號(hào)的檢測(cè)和估計(jì)理論,文中分析了數(shù)字相關(guān)器實(shí)現(xiàn)偽碼信號(hào)接收的最佳模型,從理論上計(jì)算了在不同的虛警概率下,檢測(cè)概率隨輸入信噪比的變化曲線,并分析了doppler效應(yīng)對(duì)偽碼相關(guān)接收的影響。