TY  - JOUR
T1  - Symbol Timing Error Estimation Using Constellation Histogram and CNN in SOQPSK-TG Modulation
AU  - Lee, Ji-hyun 
AU  - Ra, Hyung-in 
AU  - Kim, Ki-man 
AU  - Han, Jeong-woo 
JO  - The Journal of Korean Institute of Communications and Information Sciences
PY  - 2025
DA  - 2025/1/1
DO  - 10.7840/kics.2025.50.10.1560
KW  - IRIG-106 Telemetry Standard
KW  - Partial
KW  - Response Continuous Phase
KW  - Modulation
KW  - Symbol Timing Error
KW  - Estimation
KW  - SOQPSK-TG
KW  - CNN
AB  - In this letter, we present a symbol timing error estimation method for SOQPSK-TG modulation, which is one of the partial response continuous phase modulation schemes and defined in the IRIG-106 international telemetry standard. In the proposed method, we apply the constellation histogram of the preamble and convolutional neural network (CNN). The performance of the proposed method for symbol timing error estimation is demonstrated via simulation results.