Jian Sun Chengwei Wang Guangxun Lu Yaqing Du Haitao Bai An inadvertent modulation signal processing method based on modified LCD. 108-111 2019 AIPR https://doi.org/10.1145/3357254.3357261 conf/aipr2/2019 db/conf/aipr2/aipr2019.html#SunWLDB19