本文選題：復(fù)用 + 調(diào)制��； 參考：《測繪科學(xué)》2017年05期

【摘要】：針對(duì)傳統(tǒng)的互復(fù)用調(diào)制方法中,8種不同的輸入信號(hào)組合值與6個(gè)不同相位量之間對(duì)應(yīng)關(guān)系模糊的問題,提出了三碼八相的互復(fù)用調(diào)制方法。基于三碼八相互復(fù)用調(diào)制方法,利用與3路輸入信號(hào)相關(guān)的指數(shù)因子,推導(dǎo)出了新的互復(fù)用基帶調(diào)制信號(hào)表達(dá)式,實(shí)現(xiàn)了復(fù)用調(diào)制信號(hào)的相位翻轉(zhuǎn),得到了8個(gè)不同的相位值。仿真結(jié)果顯示,三碼八相互復(fù)用調(diào)制方法,保證了復(fù)用調(diào)制信號(hào)的恒包絡(luò)特性,解決了輸入碼組合值與相位量之間對(duì)應(yīng)關(guān)系的模糊度問題,研究結(jié)果對(duì)于GNSS組合中的信號(hào)調(diào)制有一定的參考價(jià)值。
[Abstract]:In order to solve the problem of fuzzy correspondence between 8 different input signal combinations and 6 different phase quantities in the traditional method of mutual multiplexing modulation, a three-code and eight-phase modulation method is proposed. Based on the three code 8 multiplexing modulation method and using the exponential factor related to the three input signals, a new expression of the multiplexing baseband modulation signal is derived, and the phase flip of the multiplexed modulation signal is realized, and eight different phase values are obtained. The simulation results show that the modulation method of three codes and eight multiplexing ensures the constant envelope characteristic of the multiplexed modulation signal, and solves the ambiguity problem of the corresponding relation between the input code combination value and the phase value. The research results have some reference value for signal modulation in GNSS combination.
【作者單位】： 電子科技大學(xué)電子科學(xué)技術(shù)研究院;
【分類號(hào)】：P228.4
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本文編號(hào)：1921533