# Non Data-Aided SNR Estimation for UAV OFDM Systems

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## Abstract

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## 1. Introduction

## 2. Signals Model of UAV OFDM

#### 2.1. UAV Channel Model

#### 2.2. The OFDM Model over UAV Channel

## 3. The Proposed NDA SNR Estimation Method

## 4. Numeric Simulation and Discussion

#### 4.1. SNR Estimation Performance with Different Number of Symbols

#### 4.2. SNR Estimation Performance with Different Frequency Offsets

#### 4.3. Estimation Performance Comparison of Different SNR Estimation Methods

## 5. Conclusions

## Author Contributions

## Funding

## Conflicts of Interest

## References

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**Figure 1.**Unmanned Aerial Vehicle (UAV) Orthogonal frequency division multiplexing (OFDM) system model.

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**MDPI and ACS Style**

Li, J.; Liu, M.; Tang, N.; Shang, B. Non Data-Aided SNR Estimation for UAV OFDM Systems. *Algorithms* **2020**, *13*, 22.
https://doi.org/10.3390/a13010022

**AMA Style**

Li J, Liu M, Tang N, Shang B. Non Data-Aided SNR Estimation for UAV OFDM Systems. *Algorithms*. 2020; 13(1):22.
https://doi.org/10.3390/a13010022

**Chicago/Turabian Style**

Li, Junfang, Mingqian Liu, Ningjie Tang, and Bodong Shang. 2020. "Non Data-Aided SNR Estimation for UAV OFDM Systems" *Algorithms* 13, no. 1: 22.
https://doi.org/10.3390/a13010022