HDL-Optimized System Design

Choose algorithms for wireless communications hardware system design

These blocks implement hardware-friendly architectures and support HDL code generation when used with HDL Coder™. The blocks use a streaming sample interface with a bus for related control signals.

块

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错误检测和校正

LTE Convolutional Encoder	使用尾巴卷积算法编码二进制样品
LTE Convolutional Decoder	Decode convolutional-encoded samples using Viterbi algorithm
LTE CRC Encoder	生成校验和附加到输入样本流
LTE CRC解码器	使用校验和检测输入样品中的错误
LTE Turbo Encoder	使用涡轮算法编码二进制样品
LTE Turbo Decoder	Decode turbo-encoded samples
NR LDPC Encoder	Perform LDPC encoding according to 5G NR standard
NR LDPC Decoder	Decode LDPC code using layered belief propagation with min-sum or normalized min-sum approximation algorithm
NR极地编码器	Perform polar encoding according to 5G NR standard
NR Polar Decoder	Perform polar decoding according to 5G NR standard
Viterbi解码器	Decode convolutionally encoded data using Viterbi algorithm
Depuncturer	Reverse puncturing scheme to prepare for decoding
卷积编码器	Encode data bits using convolution coding — optimized for HDL code generation
身后人	根据穿刺矢量穿刺数据
RS Decoder	Decode and recover message from RS codeword
RS编码器	Encode message to RS codeword

调制

LTE OFDM Demodulator	解调时间域OFDM样品并返回LTE资源网格
LTE OFDM Modulator	时域调制LTE资源网格和回报OFDM samples
LTE Symbol Demodulator	Demodulate complex LTE data symbols to data bits or LLR values
LTE Symbol Modulator	将数据位调节到复杂的LTE数据符号
NR符号解调器	将复杂的NR数据符号解调为数据位或LLR值
NR符号调制器	将数据位调节到复杂的NR数据符号
OFDM解调器	Demodulate time-domain OFDM samples and return subcarriers for custom communication protocols
OFDM Modulator	Modulate frequency-domain OFDM subcarriers to time-domain samples for custom communication protocols
FFT 1536	Computes fast-fourier-transform (FFT) for LTE standard transmission bandwidth of 15 MHz
OFDM通道估计器	使用输入数据和参考子载波估算渠道

公用事业

LTE金序列发生器

Generate Gold sequence

Featured Examples

Sample Rate Conversion for an LTE Receiver

设计和实施LTE接收器前端的样本率转换。该模型与无线HDL Toolbox™接收器参考应用程序兼容，并使用HDL Coder™支持HDL代码生成。万博1manbetx

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HDL代码生成用于过滤的OFDM（F-OFDM）发射机

Filtered OFDM (F-OFDM) applies a filter to the symbols after the IFFT in the transmitter to improve bandwidth while maintaining the orthogonality of the complex symbols. This example implements a transmitter F-OFDM for HDL code generation. The example shows how to go from a MATLAB® reference model to an HDL-optimized Simulink® model. It includes converting from double to fixed-point types, and minimizing the resource use of the design on an FPGA.

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HDL实现变量大小的FFT

Implement a variable-size FFT using a single FFT core.

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无线HDL LTE涡轮解码器的加速ber测量

The workflow to measure the BER of the Wireless HDL Toolbox™ Turbo Decoder using parsim to parallelize the simulations across EbNo points. This approach can be used to accelerate other Monte Carlo simulations.

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HDL Implementation of AWGN Generator

The implementation of an additive white Gaussian noise (AWGN) generator that is optimized for HDL code generation and hardware implementation. The hardware implementation of AWGN accelerates the performance evaluation of wireless communication systems using an AWGN channel. In this example, the Simulink® model accepts signal-to-noise ratio (SNR) values as inputs and generates Gaussian random noise along with valid signal. The example supports SNR input ranges from –20 to 31 dB in steps of 0.1 dB.

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HDL实施数字序言

针对HDL代码生成和硬件实现进行了优化的数字预性（DPD）模型的实现。预归化机制分为两个阶段。在第一阶段，根据功率放大器（PA）的输入和输出数据估算了一组DPD系数。在第二阶段，PA的输入数据是根据估计的DPD系数预测的，并作为PA的新输入提供。此示例演示了一个系统级仿真，其中Digital Predistorter子系统生成HDL代码，而DPD系数估计产生C/C ++代码。此示例模型仅支持正常和加速器仿真模式。万博1manbetx

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