原创 那些年，我们拿下了FPGA（上）第3章-FPGA的应用领域（3）

应用领域

DSP算法

通用领域

自适应滤波、滤波和卷积、检测和纠正、谱估计和傅立叶变换

语音处理

编码和解码、加密和解密、语音识别和合成、扬声器识别、回声消除、人工耳蜗的信号处理

音频处理

hi-hi编解码、噪声消除、音频平衡、环境声学仿真、混音和编辑、声音合成

图像处理

压缩和解压缩、旋转、图像传输与分解、图像识别、图像增强、人工视网膜的信号处理

信息系统

语音信箱、传真、调制解调器、移动电话、线路均衡器、数据加密和解密、数字通信和局域网、延拓频谱技术、无线局域网、广播电视、生物医学信号处理

仪表设备

波束成型、波形发生器、瞬态分析、稳态分析、科学仪器设备、雷达和声纳

分类

IP核

描述

滤波器

CIC Compiler

The Xilinx CIC Compiler LogiCORE is a module for design and implementation of Cascaded Integrator-Comb (CIC) filters for a variety of Xilinx FPGA devices

DUC/DDC Compiler

Digital Up/Down Converters (DUC/DDC) are important components in the signal processing chains of many digital communications systems. The Xilinx DUC/DDC Compiler LogiCORE provides users with means to rapidly implement these functions for a range of wireless interface standards based on system-level parameters. The core implementation is delivered through the Xilinx CORE Generator system, and is designed to take advantage of the advanced features of Xilinx FPGA devices

FIR Compiler

The Xilinx FIR Compiler LogiCORE is a module for generation of high speed, compact filter implementations that can be configured to implement many different filtering functions. The core is fully synchronous, using a single clock, and is highly parameterizable, allowing designers to control the filter type, data and coefficient widths, the number of filter taps, the number of channels, etc. Multi-rate operation is supported. The implementation method can be specified by the user, with a choice of Multiply-Accumulate or Distributed Arithmetic architectures. The core is delivered through the Xilinx CORE Generator System and integrates seamlessly with the Xilinx design flow

变换

Discrete Fourier Transform

The Discrete Fourier Transform (DFT) core has been specifically designed to meet the needs of the LTE standard, in terms of point sizes, low latency and resource requirements.

Fast Fourier Transform

The Fast Fourier Transform (FFT) is a computationally efficient algorithm for computing the Discrete Fourier Transform (DFT). The FFT Core can compute 8 to 65536-point forward or inverse complex transforms on up to 12 parallel channels. The input data is a vector of complex values represented as two's-complement numbers 8 to 34 bits wide or single precision floating point numbers 32 bits wide. The phase factors can be 8 to 34 bits wide. All memory is on-chip using either Block RAM or Distributed RAM. Three arithmetic types are available: full-precision unscaled, scaled fixed-point, and block-floating point. Several parameters are run-time configurable: the point size, the choice of forward or inverse transform, and the scaling schedule. Four architectures are available to provide a tradeoff between size and transform time

LTE Fast Fourier Transform

The LTE Fast Fourier Transform LogiCORE(TM) implements all transform lengths required by the 3GPP LTE specification, including the 1536-point transform for 15 MHz bandwidths. The transform length, transform direction, cyclic prefix length and scaling schedule may be configured on a per-frame basis

调制

DDS Compiler

The Xilinx DDS Compiler LogiCORE provides Direct Digital Synthesizers (DDS) and optionally either Phase Generator or Sine/Cosine Lookup Table constituent parts as independent cores. The core features sine, cosine or quadrature outputs with 3 to 26-bit output sample precision. The core supports up to 16 channels by time-sharing the sine/cosine table which dramatically reduces the area requirement when multiple channels are needed. Phase Dithering and Taylor Series Correction options provide high dynamic range signals using minimal FPGA resources. In addition, the core has an optional phase offset capability, providing support for multiple synthesizers with precisely controlled phase differences

块运算

Complex Multiplier

Complex multiplication is a basic DSP operation. All operands, as well as the results, are represented as signed two's-complement data. Operand widths and result widths are parameterizable. Operand widths up to 63 bits are supported

CORDIC

The Xilinx CORDIC LogiCORE is a module for generation of the generalized coordinate rotational digital computer (CORDIC) algorithm which iteratively solves trigonometric, hyperbolic and square root equations. The core is fully synchronous using a single clock. Options include parameterizable data width and control signals. The core supports either serial architecture for minimal area implementations, or parallel architecture for speed optimization. The core is delivered through the Xilinx CORE Generator System and integrates seamlessly with the Xilinx design flow

分类

IP核

算法

Floating Point Megafunctions

滤波和变换

CIC Compiler

FFT/IFFT

FIR Compiler

FIR Compiler II

调制解调

Numerically Controlled Oscillator Compiler