modulation parameter造句
例句與造句
- As any other adaptive system , the following three steps are essential to our aofdm : estimating channel , choosing the right modulation parameters and signaling the chosen parameters
和任何自適應(yīng)系統(tǒng)一樣，此系統(tǒng)包括信道估計(jì)，調(diào)制參數(shù)選擇，以及信令三個(gè)主要部分。 - According to transcendent knowledge , this algorithm classifies modulation systems by computing instantaneous frequency and instantaneous bandwidth of signal and regarding them as modulation parameters
該算法憑借先驗(yàn)知識(shí)，通過(guò)計(jì)算信號(hào)的瞬時(shí)頻率和瞬時(shí)帶寬，并以此作為制式識(shí)別參數(shù)來(lái)判斷信號(hào)的調(diào)制類型。 - How to choose the modulation parameter is the main concern of chap 4 . supposing that channel estimation is complete , a closed form relation between modulation switching levels and target ber is first derived
首先在信道估計(jì)完全正確的假設(shè)下，推導(dǎo)出了調(diào)制方式切換門限與目標(biāo)誤碼率在即時(shí)誤碼率及平均誤碼率約束下的關(guān)系表達(dá)式。 - Modulation format is one of the most important characteristics used to distinguish communication signals . knowing the modulation format and modulation parameters of a communication signal is the first step of correct demodulation
調(diào)制方式是區(qū)分不同性質(zhì)通信信號(hào)的一個(gè)重要特征，而要截獲通信信號(hào)的信息內(nèi)容，必須知道信號(hào)的調(diào)制方式和調(diào)制參數(shù)。 - The method can measure the following parameters , ( pulse attitude ) pa , ( pulse width ) pw , ( time of approach ) toa , snr , ( radio frequency ) rf , pulse envelope characteristic parameters and intra - pulse modulation parameters with a high precision and a high discrimination
該算法能夠分析雷達(dá)信號(hào)的脈沖脈幅、脈寬、到達(dá)時(shí)間、信噪比、載頻、脈沖包絡(luò)特征參數(shù)和脈內(nèi)調(diào)制特征參數(shù)。 - It's difficult to find modulation parameter in a sentence. 用modulation parameter造句挺難的
- Given a received communication signal , the objective of modulation recognition is to decide the modulation format and estimate the modulation parameters of the communication signal without any priori knowledge about the signal information content
給定一段接收的通信信號(hào)，調(diào)制識(shí)別的目的就是在未知調(diào)制信息內(nèi)容的前提下，判斷出通信信號(hào)的調(diào)制方式，并估計(jì)出相應(yīng)的調(diào)制參數(shù)。 - Some modulation parameters , such as the carrier frequency and the symbol rate , can be estimated prior to the recognition of modulation types . such other parameters as the modulation index , the modulation frequency deviation , and the signal broadband can be further estimated after recognition
部分調(diào)制參數(shù)如載波頻率、符號(hào)速率在識(shí)別之前獲得，在識(shí)別完成之后可以進(jìn)一步估計(jì)調(diào)制指數(shù)、調(diào)制頻偏、信號(hào)帶寬等其余參數(shù)。 - The numerical results of the dispersion relation show some nonlinear effects : for a fixed geometry of a waveguid , beam parameters and plasma density , the increment of the modulation parameter may lead to a slight increment of the operating frequency , however , as the modulation parameter increases further , saturation may occur and the dispersion relations are hard to be separated , it is due to the overmodulation of the microwave power , this phenomenon itself belongs to the nonlinear effects
對(duì)于一定的波導(dǎo)、電子注參量和等離子體密度值，等離子體調(diào)制系數(shù)的增加，使工作頻率略微升高。但是，隨著等離子體調(diào)制系數(shù)的進(jìn)一步增加，色散曲線變得彼此之間不可分辨，可以認(rèn)為是等離子體的過(guò)調(diào)制導(dǎo)致了柵的飽和。這一現(xiàn)象是非線性的，可見，等離子體柵和調(diào)制場(chǎng)中文摘要是非線性關(guān)系，等離子體柵是非線性j 。 - 3 . in order to show the fact that the - licrowave modulates the background plasma density and the density grating influences the propagation of the microwave in return , the dispersion relation of the dielectric cerenkov maser filled with plasma grating is derived when the modulation parameter is varied
三、為了反映等離子體被微波場(chǎng)調(diào)制從而形成密度周期性分布的等離子體柵，反過(guò)來(lái)影響電磁波的傳播這一物理事實(shí)，在調(diào)制系數(shù)變化的情況下，從等離子體柵的等效模型出發(fā)，推導(dǎo)了等離子體柵填充的介質(zhì)cerenkov脈塞的色散方程。