正交频分复用OFDM是什么意思？ 正交频分复用 (Orthogonal Frequency Division Multiplexing-OFDM) 是宽带数字通信的常用调制方案。它使用许多间隔很近的正交子载波信号并行传输数据，其中每个子载波信号都采用各自的调制方案。 OFDM 提供频谱效率、抗多径干扰性和零载波 ...

As more high-speed amplifier applications deal with communication systems, wired or wireless, a brief introduction and overview of orthogonal frequency division multiplex (OFDM) is necessary. With a ...

A talk, The Unreasonable Effectiveness of the Fourier Transform, was presented by [Joshua Wise] at Teardown 2025 in June last year. Click-through for the notes or check out the video below the break ...

Index modulation (IM) in orthogonal frequency division multiplexing (OFDM) systems represents a transformative approach in modern communications. This technique utilises the indices of active ...

Over the past year I’ve been writing about potential transmission standards for a nextgeneration broadcast platform (NGBP). The most promising standards are all based on orthogonal frequency division ...

In mobile underwater acoustic communications (UAC), the relative movement between the transceivers will cause Doppler spread in the received signal, which will bring inter-carrier interference to the ...

Abstract: While many questions still surround the creation and deployment of the smart grid, the need for a reliable communications infrastructure is indisputable. Developers of the IEEE 1901.2 ...

A three day course on orthogonal frequency division multiplexing (OFDM) designed to present the complex mathematical theory associated with wireless systems in an intuitive and straightforward style ...

Orthogonal frequency division multiplexing (OFDM) has become attractive for many current and emerging commercial applications because it provides a combination of data throughput, scalability, and ...

In this paper, a Fast Fourier Transform (FFT) or inverse FFT processor for Fifth-Generation (5G) Multiple-Input Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) system’s ...

Orthogonal frequency-division multiple-access provides Wi-Fi 6 with high throughput and more network efficiency by letting multiple clients connect to a single access point simultaneously. Wi-Fi 6, ...