【摘要】：為了解決雷達(dá)通信一體化系統(tǒng)中的雷達(dá)信號(hào)與通信信號(hào)較難分離的問題,在正交頻分復(fù)用(OFDM)雷達(dá)的基礎(chǔ)上,提出了一種基于OFDM脈間隨機(jī)步進(jìn)頻的雷達(dá)通信一體化信號(hào)模型,通過頻率捷變將數(shù)據(jù)信息加載到雷達(dá)信號(hào)上,利用隨機(jī)的步進(jìn)頻率傳輸數(shù)據(jù),從而使一體化信號(hào)能同時(shí)實(shí)現(xiàn)雷達(dá)探測和數(shù)據(jù)通信功能,避免了信號(hào)分離。同時(shí)設(shè)計(jì)了雷達(dá)通信一體化方案,在雷達(dá)接收端,運(yùn)用相關(guān)法實(shí)現(xiàn)一維距離成像;在通信接收端,通過帶通濾波器組檢測頻率點(diǎn)解調(diào)數(shù)據(jù)。仿真實(shí)驗(yàn)結(jié)果表明,一體化信號(hào)能實(shí)現(xiàn)分米級的距離高分辨和速率為Mbit/s級的數(shù)據(jù)通信,能夠滿足大批量數(shù)據(jù)傳輸?shù)囊蟆?br/>[Abstract]:In order to solve the problem that it is difficult to separate the radar signal from the communication signal in the integrated radar communication system, a radar communication integrated signal model based on OFDM random step frequency is proposed on the basis of orthogonal frequency division multiplexing (orthogonal frequency division multiplexing) (OFDM) radar. The data information is loaded into the radar signal by frequency agility, and the data is transmitted by the random step frequency, so that the integrated signal can realize the functions of radar detection and data communication simultaneously and avoid the separation of the signal. At the same time, the integrated radar communication scheme is designed. In the radar receiver, the correlation method is used to realize the one-dimensional range imaging, and the frequency point demodulation data is detected by the bandpass filter bank in the communication receiver. The simulation results show that the integrated signal can realize the high range resolution at the decimeter level and the data communication at the Mbit/s level, which can meet the requirements of mass data transmission.
【作者單位】： 空軍工程大學(xué)信息與導(dǎo)航學(xué)院;解放軍94789部隊(duì);
【基金】：國家自然科學(xué)基金資助項(xiàng)目(61172169) 陜西省自然科學(xué)基礎(chǔ)研究計(jì)劃項(xiàng)目(2012JQ8036)~~
【分類號(hào)】：TN957.51
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本文編號(hào)：2203263